120=4(7a+2)

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Solution for 120=4(7a+2) equation: 



120=4(7a+2)

We move all terms to the left:

120-(4(7a+2))=0



We calculate terms in parentheses: -(4(7a+2)), so:

4(7a+2)

We multiply parentheses

28a+8

Back to the equation:

-(28a+8)



We get rid of parentheses

-28a-8+120=0

We add all the numbers together, and all the variables

-28a+112=0

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

-28a=-112

a=-112/-28

a=+4

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