Question

Solve for x:
3x + 2x + 7 = 10x - 16
What’s the answer ?

Answer 1

`x=(23)/(6)` or
`4.6`

Explanation:

`3x + 2x + 7 = 10x - 16`

`5x+7=10x-16`

Subtract 7 from both sides:

`5x+7-7=10x-16-7\\5x=10x-23`

Subtract 10x from both sides:

`5x-10x=10x-23-10x\\-5x=-23`

Divide both sides by -5:

`(-5x)/(-5)=(-23)/(-5)\\x=(23)/(5)` or
`4.6`