-30-5a=2(-7-a)+5

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Solution for -30-5a=2(-7-a)+5 equation: 



-30-5a=2(-7-a)+5

We move all terms to the left:

-30-5a-(2(-7-a)+5)=0

We add all the numbers together, and all the variables

-5a-(2(-1a-7)+5)-30=0



We calculate terms in parentheses: -(2(-1a-7)+5), so:

2(-1a-7)+5

We multiply parentheses

-2a-14+5

We add all the numbers together, and all the variables

-2a-9

Back to the equation:

-(-2a-9)



We get rid of parentheses

-5a+2a+9-30=0

We add all the numbers together, and all the variables

-3a-21=0

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

-3a=21

a=21/-3

a=-7

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