42=7a+5+72a

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Solution for 42=7a+5+72a equation: 



42=7a+5+72a

We move all terms to the left:

42-(7a+5+72a)=0

We add all the numbers together, and all the variables

-(79a+5)+42=0

We get rid of parentheses

-79a-5+42=0

We add all the numbers together, and all the variables

-79a+37=0

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

-79a=-37

a=-37/-79

a=37/79

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