120=4(y+20)

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Solution for 120=4(y+20) equation: 



120=4(y+20)

We move all terms to the left:

120-(4(y+20))=0



We calculate terms in parentheses: -(4(y+20)), so:

4(y+20)

We multiply parentheses

4y+80

Back to the equation:

-(4y+80)



We get rid of parentheses

-4y-80+120=0

We add all the numbers together, and all the variables

-4y+40=0

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

-4y=-40

y=-40/-4

y=+10

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