-7(5+3a)=112

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Solution for -7(5+3a)=112 equation: 



-7(5+3a)=112

We move all terms to the left:

-7(5+3a)-(112)=0

We add all the numbers together, and all the variables

-7(3a+5)-112=0

We multiply parentheses

-21a-35-112=0

We add all the numbers together, and all the variables

-21a-147=0

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

-21a=147

a=147/-21

a=-7

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