(a+72)+(4a-78)=+80

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Solution for (a+72)+(4a-78)=+80 equation: 



(a+72)+(4a-78)=+80

We move all terms to the left:

(a+72)+(4a-78)-(+80)=0

We add all the numbers together, and all the variables

(a+72)+(4a-78)-80=0

We get rid of parentheses

a+4a+72-78-80=0

We add all the numbers together, and all the variables

5a-86=0

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

5a=86

a=86/5

a=17+1/5

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