-31=-8(3a-5)+5(a+1)

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Solution for -31=-8(3a-5)+5(a+1) equation: 



-31=-8(3a-5)+5(a+1)

We move all terms to the left:

-31-(-8(3a-5)+5(a+1))=0



We calculate terms in parentheses: -(-8(3a-5)+5(a+1)), so:

-8(3a-5)+5(a+1)

We multiply parentheses

-24a+5a+40+5

We add all the numbers together, and all the variables

-19a+45

Back to the equation:

-(-19a+45)



We get rid of parentheses

19a-45-31=0

We add all the numbers together, and all the variables

19a-76=0

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

19a=76

a=76/19

a=4

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