$MathMaster logo$

MathMaster

Home
general
15x 20 6x x 2 x 3

Question

15x-20=6x-(x+2)+(-x+3)

288

likes

1438 views

Answer to a math question 15x-20=6x-(x+2)+(-x+3)

$Expert avatar$

4.4

104 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)

Math Question: What is the limit of (2x^2 + 3x - 1) as x approaches 4?

+

Find the roots of the cubic equation x^3 - 2x^2 + 2x - 1 = 0.

+

Find the value of sinh(2x) + cosh(3x) when x = 2.

+

New questions in Mathematics

Jose bought 3/4 of oil and his sister bought 6/8, which of the two bought more oil?

What is the amount of interest of 75,000 at 3.45% per year, at the end of 12 years and 6 months?

Suppose 56% of politicians are lawyers if a random sample of size 873 is selected, what is the probability that the proportion of politicians who are lawyers will be less than 55% round your answer to four decimal places

2x-4y=-6; -4y+4y=-8

A regional candy factory sells a guava roll at a price of $48, the monthly fixed costs amount to $125,000 and the variable cost for making a guava roll is $28. Determine: a) The equation of the total income from the production of guava rolls.

If f(x,y)=6xy^2+3y^3 find (∫3,-2) f(x,y)dx.

Use a pattern approach to explain why (-2)(-3)=6

Using the bank and exact method, calculate the interest on capital 10000 at 12% annual nominal interest rate for the period from 15.3. 2016 until 10/10/2016

Buffalo Company makes and sells shampoo. Each unit requires $1.40 labor costs, material costs per unit are $0.90 and other variable costs are $0.30. It sells shampoo for $4.45 to retailers. Fixed costs are $15,000. It sold 25,000 units in the current month. What is the Break-Even point in units? What is the Break-Even point in dollars? What is the contribution margin of Buffalo Company?

effectiveness of fiscal and monetary policy under closed and open economies

A diamond ring was reduced from $999.99 to $689.99. Find the percent reduction in the price. Round the answer to the nearest tenth of a percent, if necessary.

if y=1/w^2 yw=2-x; find dy/dx

a coffee shop has 9 types of creamer and 11 types of sweetener. In how any ways can a person make their coffee?

A candy manufacturer must monitor deviations in the amount of sugar in their products They want their products to meet standards. They selected a random sample of 20 candies and found that the sandard deviation of that sample is 1.7. What is the probabilty of finding a sample variance as high or higher if the population variance is actually 3277 Assume the population distribution is normal.

question 1 Consider a sample space S, and two events A and B such that P(A ∩ B) = 0.2, P(A ∪ B) = 0.6, P(B ∪ ̄A) = 0.8 (a) [0.5 points] Calculate P (A). (b) [0.5 points] Calculate P (B)

g(x)=3(x+8). What is the value of g(12)