(6a+42)+(18a-12)=180

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Solution for (6a+42)+(18a-12)=180 equation: 



(6a+42)+(18a-12)=180

We move all terms to the left:

(6a+42)+(18a-12)-(180)=0

We get rid of parentheses

6a+18a+42-12-180=0

We add all the numbers together, and all the variables

24a-150=0

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

24a=150

a=150/24

a=6+1/4

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