(7a-4)+(3a+72)=180

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Solution for (7a-4)+(3a+72)=180 equation: 



(7a-4)+(3a+72)=180

We move all terms to the left:

(7a-4)+(3a+72)-(180)=0

We get rid of parentheses

7a+3a-4+72-180=0

We add all the numbers together, and all the variables

10a-112=0

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

10a=112

a=112/10

a=11+1/5

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