Z=(a+7)3

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Solution for Z=(a+7)3 equation: 



=(Z+7)3

We move all terms to the left:

-((Z+7)3)=0



We calculate terms in parentheses: -((Z+7)3), so:

(Z+7)3

We multiply parentheses

3Z+21

Back to the equation:

-(3Z+21)



We get rid of parentheses

-3Z-21=0

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

-3Z=21

Z=21/-3

Z=-7

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