-7a-7-8=10+5-4a+7a

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Solution for -7a-7-8=10+5-4a+7a equation: 



-7a-7-8=10+5-4a+7a

We move all terms to the left:

-7a-7-8-(10+5-4a+7a)=0

We add all the numbers together, and all the variables

-7a-(3a+15)-7-8=0

We add all the numbers together, and all the variables

-7a-(3a+15)-15=0

We get rid of parentheses

-7a-3a-15-15=0

We add all the numbers together, and all the variables

-10a-30=0

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

-10a=30

a=30/-10

a=-3

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