125=-5(-6a-7)

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Solution for 125=-5(-6a-7) equation: 



125=-5(-6a-7)

We move all terms to the left:

125-(-5(-6a-7))=0



We calculate terms in parentheses: -(-5(-6a-7)), so:

-5(-6a-7)

We multiply parentheses

30a+35

Back to the equation:

-(30a+35)



We get rid of parentheses

-30a-35+125=0

We add all the numbers together, and all the variables

-30a+90=0

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

-30a=-90

a=-90/-30

a=+3

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