-7-8a=-5(3+2a)

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Solution for -7-8a=-5(3+2a) equation: 



-7-8a=-5(3+2a)

We move all terms to the left:

-7-8a-(-5(3+2a))=0

We add all the numbers together, and all the variables

-8a-(-5(2a+3))-7=0



We calculate terms in parentheses: -(-5(2a+3)), so:

-5(2a+3)

We multiply parentheses

-10a-15

Back to the equation:

-(-10a-15)



We get rid of parentheses

-8a+10a+15-7=0

We add all the numbers together, and all the variables

2a+8=0

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

2a=-8

a=-8/2

a=-4

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