Question

7x-12=4(x-9)-9x This is pre algebra

Answer 1

`x=-2`

Explanation:

Lets solve for x.

`7x-12=4(x-9)-9x`

Apply the distributive property in
`4(x-9)`.

`7x-12=4x-36-9x`

Subtract
`9x` from
`4x`.

`7x-12=-5x-36`

Subtract
`7x` from both sides of the equation.

`-12=-5x-36-7x`

Subtract
`7x` from
`-5x`.

`-12=-12x-36`

Add 36 to both sides of the equation.

`24=-12x`

`-12x=24`

Divide both sides of the equation by -12.

`x=-2`