-3=2.5+0.5y

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Solution for -3=2.5+0.5y equation: 



-3=2.5+0.5y

We move all terms to the left:

-3-(2.5+0.5y)=0

We add all the numbers together, and all the variables

-(0.5y+2.5)-3=0

We get rid of parentheses

-0.5y-2.5-3=0

We add all the numbers together, and all the variables

-0.5y-5.5=0

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

-0.5y=5.5

y=5.5/-0.5

y=-11

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