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

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

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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

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


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

-3(k+21)

We multiply parentheses

-3k-63

Back to the equation:

-(-3k-63)


We get rid of parentheses

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

We add all the numbers together, and all the variables

-5k+159=0

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

-5k=-159

k=-159/-5

k=31+4/5