31=2(y+8)-7y

Solution for 31=2(y+8)-7y equation:

31=2(y+8)-7y

We move all terms to the left:

31-(2(y+8)-7y)=0


We calculate terms in parentheses: -(2(y+8)-7y), so:

2(y+8)-7y

We add all the numbers together, and all the variables

-7y+2(y+8)

We multiply parentheses

-7y+2y+16

We add all the numbers together, and all the variables

-5y+16

Back to the equation:

-(-5y+16)


We get rid of parentheses

5y-16+31=0

We add all the numbers together, and all the variables

5y+15=0

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

5y=-15

y=-15/5

y=-3