3(z+6)=-21

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Solution for 3(z+6)=-21 equation: 



3(z+6)=-21

We move all terms to the left:

3(z+6)-(-21)=0

We add all the numbers together, and all the variables

3(z+6)+21=0

We multiply parentheses

3z+18+21=0

We add all the numbers together, and all the variables

3z+39=0

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

3z=-39

z=-39/3

z=-13

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