9+y=3-y

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Solution for 9+y=3-y equation: 



9+y=3-y

We move all terms to the left:

9+y-(3-y)=0

We add all the numbers together, and all the variables

y-(-1y+3)+9=0

We get rid of parentheses

y+1y-3+9=0

We add all the numbers together, and all the variables

2y+6=0

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

2y=-6

y=-6/2

y=-3

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