2(y+2)=21

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Solution for 2(y+2)=21 equation: 



2(y+2)=21

We move all terms to the left:

2(y+2)-(21)=0

We multiply parentheses

2y+4-21=0

We add all the numbers together, and all the variables

2y-17=0

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

2y=17

y=17/2

y=8+1/2

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