Question

What is the solution to the equation 3x + 2(x − 9) = 8x + x − 14? (1 point)

a. −8
b. −1
c. 1
d. 8

Answer 1

B. -1

Explanation:

STEP 1: Simplify 3x+2(x−9).

`5x-18=8x+x-14`

STEP 2: Add 8x and x.

`5x-18=9x=-14`

STEP 3: Move all terms containing x to the left side of the equation.

`-4x-18=-14`

STEP 3: Move all terms not containing x to the right side of the equation.

`-4x=4`

STEP 4: Divide each term by −4 and simplify.

`x=-1`