MathMaster
Q & A
Blog
Tutorials
Calculators
Privacy policy
CONTACT US
Menu
Home
general
15x 20 6x x 2 x 3
Question
15x-20=6x-(x+2)+(-x+3)
Like
288
likes
1438
views
Answer to a math question 15x-20=6x-(x+2)+(-x+3)
Jayne
4.4
106
Answers
Remove parentheses
$(-a)=-a$
$15x-20=6x-(x+2)-x+3$
Group like terms
$15x-20=6x-x-(x+2)+3$
Add similar elements:
$ 6x-x=5x$
$15x-20=5x-(x+2)+3$
Expand
$5x-(x+2)+3:{\quad}4x+1$
$15x-20=4x+1$
Move
$ 20 $
to the right side
$15x=4x+21$
Move
$ 4x $
to the left side
$11x=21$
Divide both sides by
$11$
$x=\frac{21}{11}$
Frequently asked questions (FAQs)
What is the limit as x approaches infinity of (3x^2 + 5x - 2) / (2x^2 - 7x + 4)?
+
What is the value of x in the logarithmic function f(x) = log x if f(x) = ln x, where ln represents the natural logarithm?
+
What is the range of the following set of numbers: 7, 12, 5, 9, 14, 7?
+
New questions in Mathematics
Pedro bought 9 kg of sugar at the price of R$1.80 per kilogram, six packets of coffee at the price of R$3.90 per packet and 8 kg of rice at the price of R$2.70 per kilogram. Knowing that he paid for the purchases with a R$100.00 bill, how much change did he receive?
A person who weighs 200 pounds on earth would weigh about 32 pounds on the moon. Find the weight of a person on earth who would weigh 15 pounds on the moon.
String x = 5 Int y=2 System.out.println(x+y)
(6.2x10^3)(3x10^-6)
The mean temperature for july in H-town 73 degrees fahrenheit. Assuming that the distribution of temperature is normal what would the standart deviation have to be if 5% of the days in july have a temperature of at least 87 degrees?
Solve this mathematical problem if 3/5 of a roll of tape measures 2m. How long is the complete roll? Draw the diagram
Subscribers to the FAME magazine revealed the following preferences for three categories: Fashion 30, Athletics 24 and Business 15. Following these frequencies of observation, compute the chi-square test statistic. At the 0.05 level of significance, would you conclude they are similar?
Find the equation of the line perpendicular to β5π₯β3π¦+5=0 passing through the point (0,β2)
Suppose the Golf ball market is perfectly competitive and the functions are known: Q = 120 β 2Px β 2Py 0.2I Q = 2Px 40 Where I = Consumers' income ($200) and Py = Price of Good Y (40) Calculate the equilibrium elasticity: a) 1.6 b) -6 c) 6 d) 0.6
According to a survey in a country 27% of adults do not own a credit card suppose a simple random sample of 800 adults is obtained . Describe the sampling distribution of P hat , the sample proportion of adults who do not own a credit card
Substitute a=2 and b=-3 and c=-4 to evaluate 2ac/(-2b^2-a)
A company receives sales in $20 per book and $18 per calculator. The per unit cost to manufacture each book and calculator are $5 and 4$ respectively. The monthly (30 day) cost must not exceed $27000 per month. If the manufacturing equipment used by the company takes five minutes to produce a book and 15 minutes to produce a calculator, how many books and calculators should the company produce to maximise profit? Please solve graphically and
3/9*4/8=
The points (-5,-4) and (3,6) are the ends of the diameter of the circle calculate subequation
Show work on 4108 divided by 4
(a) List the set of possible rational zeros of the polynomial function F(x) = 2x3 - 11x2 + 13x - 4. (b) Find all rational zeros of F(x). Only do part B
Give an example of a function defined in R that is continuous in all points, except in the set Z of integers.
Solve for B write your answer as a fraction or as a whole number. B-1/7=4
00 piece jigsaw puzzle. the completed puzzle is 10x10. each piech connects to at least 2 other pieces. i plan to assemble by taking pieces out of box one by one. if i've already taken out 2 pieces that dont directly connect, what is the minimum number of additional pieces that i need to draw to in order to guarentee that the original 2 pieces connect?
Construct a set of six pieces of data withβ mean, median, and midrange of 67 and where no two pieces of data are the same.
Download NOW
Apple store
Download NOW
Google play
Solve NOW
Try On Web
You might be interested in
a ferry travels 1/6 of the distance between two ports in 3/7 hour. The ferry travels at a constant rate. At this rate, what fraction of the distance between the two ports can the ferry travel in one hour.
The gross domestic product the gdp for the United States in 2017 was approximately $2.05x10^3. If you wrote this number in standard notation , it would be 205 followed by how many zeros
Determine all solutions to the inequality |2x + 6| β |x + 1| < 6. Write your final answer in interval notation
I) Find the directional derivative of π(π₯, π¦) = π₯ sin π¦ at (1,0) in the direction of the unit vector that make an angle of π/4 with positive π₯-axis.
A bird randomly chooses to land on 1 of 12 perches available in its aviary. Determine the Probability of it landing on a perch numbered 8 and then on a perch marked with a prime number; take into account that he never lands on the same perch in the sequence.
-3x 2y = -6; -5x 10y = 30
Log(45)
41/39 - 1/38
Find 2 numbers whose sum is 47 and whose subtraction is 13
You are the newly appointed transport manager for Super Trucking (Pty) Ltd, which operates as a logistics service provider for various industries throughout southern Africa. One of these vehicles is a 4x2 Rigid Truck and drawbar trailer that covers 48,000 km per year. Use the assumptions below to answer the following questions (show all calculations): Overheads R 176,200 Cost of capital (% of purchase price per annum) 11.25% Annual License FeesβTruck R 16,100 Driver Monthly cost R 18,700 Assistant Monthly cost R 10,500 Purchase price: - Truck R 1,130,000 Depreciation: straight line method Truck residual value 25% Truck economic life (years) 5 Purchase price: Trailer R 370,000 Tyre usage and cost (c/km) 127 Trailer residual value 0% Trailer economic life (years) 10 Annual License FeesβTrailer R 7,700 Fuel consumption (liters/100km) 22 Fuel price (c/liter) 2053 Insurance (% of cost price) 7.5% Maintenance cost (c/km) 105 Distance travelled per year (km) 48000 Truck (tyres) 6 Trailer (tyres) 8 New tyre price (each) R 13,400 Lubricants (% of fuel cost) 2.5% Working weeks 50 Working days 5 days / week Profit margin 25% VAT 15% Q1. Calculate the annual total vehicle costs (TVC)
If X1 and X2 are independent standard normal variables, find P(X1^2 + X2^2 > 2.41)
The function h(t)=-5t^2+20t+60 models the height in meters of a ball t seconds after itβs thrown . Which describe the intercepts and vertex of this function
3+7
factor the polynomial completely over the set of complex numbers b(x)=x^4-2x^3-17x^2+4x+30
Solve for B write your answer as a fraction or as a whole number. B-1/7=4
Given two lines πΏ1: π₯ + 4π¦ = β10 and πΏ2: 2π₯ β π¦ = 7. i. Find the intersection point of πΏ1 and πΏ2.
2.3 X 0.8
Sallyβs sales for last Sunday were $1,278. That was an increase of 6.5% over her sales for the previous Saturday. What were her sales for the previous Saturday?
Convert (324)πππ£π into base-ten
Beren spent 60% of the money in her piggy bank, and Ceren spent 7% of the money in her piggy bank to buy a joint gift for Deren, totaling 90 TL. In the end, it was observed that the remaining amounts in Ceren and Beren's piggy banks were equal. Therefore, what was the total amount of money that Beren and Ceren had initially? A) 120 B) 130 C) 150 D) 160 E) 180