7(a-2)=-77

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Solution for 7(a-2)=-77 equation: 



7(a-2)=-77

We move all terms to the left:

7(a-2)-(-77)=0

We add all the numbers together, and all the variables

7(a-2)+77=0

We multiply parentheses

7a-14+77=0

We add all the numbers together, and all the variables

7a+63=0

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

7a=-63

a=-63/7

a=-9

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