0.5(y-3)=21

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Solution for 0.5(y-3)=21 equation: 



0.5(y-3)=21

We move all terms to the left:

0.5(y-3)-(21)=0

We multiply parentheses

0.5y-1.5-21=0

We add all the numbers together, and all the variables

0.5y-22.5=0

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

0.5y=22.5

y=22.5/0.5

y=45

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