-7(3a+10)=126

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Solution for -7(3a+10)=126 equation: 



-7(3a+10)=126

We move all terms to the left:

-7(3a+10)-(126)=0

We multiply parentheses

-21a-70-126=0

We add all the numbers together, and all the variables

-21a-196=0

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

-21a=196

a=196/-21

a=-9+1/3

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