-3(x+8)=31-(x-9)

Solution for -3(x+8)=31-(x-9) equation:

-3(x+8)=31-(x-9)

We move all terms to the left:

-3(x+8)-(31-(x-9))=0

We multiply parentheses

-3x-(31-(x-9))-24=0


We calculate terms in parentheses: -(31-(x-9)), so:

31-(x-9)

determiningTheFunctionDomain
-(x-9)+31

We get rid of parentheses

-x+9+31

We add all the numbers together, and all the variables

-1x+40

Back to the equation:

-(-1x+40)


We get rid of parentheses

-3x+1x-40-24=0

We add all the numbers together, and all the variables

-2x-64=0

We move all terms containing x to the left, all other terms to the right

-2x=64

x=64/-2

x=-32