(3a+26)+(7a+4)=180

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Solution for (3a+26)+(7a+4)=180 equation: 



(3a+26)+(7a+4)=180

We move all terms to the left:

(3a+26)+(7a+4)-(180)=0

We get rid of parentheses

3a+7a+26+4-180=0

We add all the numbers together, and all the variables

10a-150=0

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

10a=150

a=150/10

a=15

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