8(12-k)=2(k+21)

Solution for 8(12-k)=2(k+21) equation:

8(12-k)=2(k+21)

We move all terms to the left:

8(12-k)-(2(k+21))=0

We add all the numbers together, and all the variables

8(-1k+12)-(2(k+21))=0

We multiply parentheses

-8k-(2(k+21))+96=0


We calculate terms in parentheses: -(2(k+21)), so:

2(k+21)

We multiply parentheses

2k+42

Back to the equation:

-(2k+42)


We get rid of parentheses

-8k-2k-42+96=0

We add all the numbers together, and all the variables

-10k+54=0

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

-10k=-54

k=-54/-10

k=5+2/5