Question

Solve for x:
3x + 2 = 7x - 6

Answer 1

Answer: D.2

Work:
8=4x
x= 2

Answer 2

`\sf D.\;\;x=2`

Explanation:

`\sf 3x + 2 = 7x - 6`

Subtract 2 from both sides:-

`\sf 3x+2-2=7x-6-2`

Simplify:-

`\sf 3x=7x-8`

Subtract 7x from both sides:-

`\sf 3x-7x=7x-8-7x`

Simplify:-

`\sf -4x=-8`

Divide both sides by -4:-

`\sf (-4x)/(-4)=(-8)/(-4)`

Simplify:-

`\sf x=2`