-2(a-7)-3a=-31

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Solution for -2(a-7)-3a=-31 equation: 



-2(a-7)-3a=-31

We move all terms to the left:

-2(a-7)-3a-(-31)=0

We add all the numbers together, and all the variables

-3a-2(a-7)+31=0

We multiply parentheses

-3a-2a+14+31=0

We add all the numbers together, and all the variables

-5a+45=0

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

-5a=-45

a=-45/-5

a=+9

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