7/2-y=21/2-3

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Solution for 7/2-y=21/2-3 equation: 



7/2-y=21/2-3

We move all terms to the left:

7/2-y-(21/2-3)=0

We add all the numbers together, and all the variables

-1y+7/2-(21/2-3)=0

We get rid of parentheses

-1y+3+7/2-21/2=0

We multiply all the terms by the denominator


-1y*2+7-21+3*2=0

We add all the numbers together, and all the variables

-1y*2-8=0

Wy multiply elements

-2y-8=0

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

-2y=8

y=8/-2

y=-4

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