Question

How do you solve `8=4(8-9)-7x`?

Answer 1

`x=-12/7`

Explanation:

`"simplify the right side"`

`8=4(-1)-7x=-4-7x`

`"add 4 to both sides"`

`12=-7x`

`"divide both sides by "-7`

`12/(-7)=xtox=-12/7`

`color(blue)"As a check"`

Substitute this value into the right side of the equation and if equal to the left side then it is the solution.

`-4-(7xx-12/7)=-4-(-12)=-4+12=8`

`x=-12/7" is the solution"`