72=12(a+3)+8(-7+10a)

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Solution for 72=12(a+3)+8(-7+10a) equation: 



72=12(a+3)+8(-7+10a)

We move all terms to the left:

72-(12(a+3)+8(-7+10a))=0

We add all the numbers together, and all the variables

-(12(a+3)+8(10a-7))+72=0



We calculate terms in parentheses: -(12(a+3)+8(10a-7)), so:

12(a+3)+8(10a-7)

We multiply parentheses

12a+80a+36-56

We add all the numbers together, and all the variables

92a-20

Back to the equation:

-(92a-20)



We get rid of parentheses

-92a+20+72=0

We add all the numbers together, and all the variables

-92a+92=0

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

-92a=-92

a=-92/-92

a=1

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