MathMaster logo

MathMaster

  1. Home
  2. general
  3. 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
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 2 of (3x^2 + 4)/(x^3 -8)?
+
Math Question: What is the vertex of the parabola y = 3x^2 + 6x + 2?
+
Question: Using the product and sum formulas, find two numbers if their product is 36 and their sum is 13.
+
New questions in Mathematics
𝑦 = ( 𝑥2 − 3) (𝑥3 + 2 𝑥 + 1)
The derivative of a power is obtained just by subtracting 1 from the power True or false
58+861-87
x/20*100
Let I ⊂ R be a bounded and nonempty interval. Show that there are numbers a, b ∈ R with a ≤ b and I =[a,b] or I =[a,b) or I =(a,b] or I =(a,b)
calculate the normal vector of line y = -0.75x + 3
A company that manufactures personal hygiene items purchases machinery for $220,000 that is considered to last 7 years; it is estimated that at the end of the period it will have a salvage value of $1000. Find: to. The depreciation rate. b. The book value at the end of the sixth year.
If 0101, what is the binary representation of the 4x16 decoder output?
sin 30
1. A capital of $3,831 was lent, and it has produced interest of $840 from 05-12-2022 to 1-12-2023. At what annual simple interest rate was the capital lent?
A teacher has 25 red and yellow counters altogether. She has 4 times as many red counters than yellow counters. How many yellow counters does the teacher have?
392929-9
Derivative of 2x
A loan is repaid with payments of $2226 made at the end of each month for 12 years. If interest on the loan is 5.2%, compounded semi-annually, what is the initial value of the loan? Enter to the nearest cent (two decimals). Do not use $ signs or commas.
8/9 divided by 10/6
An election ballot asks voters to select three city judges from a group of 12 candidates. How many ways can this be done?
The slope of the tangent line to the curve f(x)=4tan x at the point (π/4,4)
Find the symmetric point to a point P = (2,-7,10) with respect to a plane containing a point Po = (3, 2, 2) and perpendicular to a vector u = [1, -3, 2].
A rectangular swimming pool has a length of 14 feet, a width of 26 feet and a depth of 5 feet. Round answers to the nearest hundredth as needed. (a) How many cubic feet of water can the pool hold? cubic feet (b) The manufacturer suggests filling the pool to 95% capacity. How many cubic feet of water is this? cubic feet
x(squared) -8x=0

You might be interested in