72=2(6+5a)

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Solution for 72=2(6+5a) equation: 



72=2(6+5a)

We move all terms to the left:

72-(2(6+5a))=0

We add all the numbers together, and all the variables

-(2(5a+6))+72=0



We calculate terms in parentheses: -(2(5a+6)), so:

2(5a+6)

We multiply parentheses

10a+12

Back to the equation:

-(10a+12)



We get rid of parentheses

-10a-12+72=0

We add all the numbers together, and all the variables

-10a+60=0

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

-10a=-60

a=-60/-10

a=+6

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