(2a+78)+(6a+126)=140

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Solution for (2a+78)+(6a+126)=140 equation: 



(2a+78)+(6a+126)=140

We move all terms to the left:

(2a+78)+(6a+126)-(140)=0

We get rid of parentheses

2a+6a+78+126-140=0

We add all the numbers together, and all the variables

8a+64=0

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

8a=-64

a=-64/8

a=-8

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