8(12-y)=3(y+21)

Solution for 8(12-y)=3(y+21) equation:

8(12-y)=3(y+21)

We move all terms to the left:

8(12-y)-(3(y+21))=0

We add all the numbers together, and all the variables

8(-1y+12)-(3(y+21))=0

We multiply parentheses

-8y-(3(y+21))+96=0


We calculate terms in parentheses: -(3(y+21)), so:

3(y+21)

We multiply parentheses

3y+63

Back to the equation:

-(3y+63)


We get rid of parentheses

-8y-3y-63+96=0

We add all the numbers together, and all the variables

-11y+33=0

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

-11y=-33

y=-33/-11

y=+3