3+7=3+y

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Solution for 3+7=3+y equation: 



3+7=3+y

We move all terms to the left:

3+7-(3+y)=0

We add all the numbers together, and all the variables

-(y+3)+3+7=0

We add all the numbers together, and all the variables

-(y+3)+10=0

We get rid of parentheses

-y-3+10=0

We add all the numbers together, and all the variables

-1y+7=0

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

-y=-7

y=-7/-1

y=+7

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