Question

How do you solve `5( x + 7) - 8x = 20`?

Answer 1

`x = 5`

Explanation:

`5(x+7) - 8x = 20`

First, use the distributive property to expand `5(x+7)`:

`5 * x + 5 * 7 = 5x + 35`

Put this back into the equation:
`5x + 35 - 8x = 20`

Combine `color(red)(5x)` and `color(red)(-8x)`:
`-3x + 35 = 20`

Subtract `color(red)(35)` from both sides of the equation:
`-3x + 35 quadcolor(red)(-quad35) = 20 quadcolor(red)(-quad35)`

`-3x = -15`

Divide both sides by `-3`:
`(-3x)/color(red)(-3) = (-15)/color(red)(-3)`

So the final answer is:
`x = 5`

Hope this helps!

Answer 2

the value of `x=5`

Explanation:

given `5(x+7)-8x=20rArr5x+35-8x=20rArr`
`-3x=-15rArrx=5`