7=5-y

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Solution for 7=5-y equation: 



7=5-y

We move all terms to the left:

7-(5-y)=0

We add all the numbers together, and all the variables

-(-1y+5)+7=0

We get rid of parentheses

1y-5+7=0

We add all the numbers together, and all the variables

y+2=0

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

y=-2

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