137=-3(-5a-3)+8

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Solution for 137=-3(-5a-3)+8 equation: 



137=-3(-5a-3)+8

We move all terms to the left:

137-(-3(-5a-3)+8)=0



We calculate terms in parentheses: -(-3(-5a-3)+8), so:

-3(-5a-3)+8

We multiply parentheses

15a+9+8

We add all the numbers together, and all the variables

15a+17

Back to the equation:

-(15a+17)



We get rid of parentheses

-15a-17+137=0

We add all the numbers together, and all the variables

-15a+120=0

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

-15a=-120

a=-120/-15

a=+8

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