Question

7x- 3(x- 6) = 30
A. X=3
B.x=9
C.x=6
D.x=12

Answer 1

A. x=3 I know this bc I took the test

Answer 2

x=3

Explanation:

1. Simplify the expression

7x-\left(3\cdot\left(x-6\right)\right)=30

Solve by distributing:

7x-\left(3x+3\cdot-6\right)=30

Simplify the arithmetic:

7x-\left(3x-18\right)=30

Expand the parentheses:

7x-3x+18=30

Simplify the arithmetic:

4x+18=30