9(1-y)/2=-y

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Solution for 9(1-y)/2=-y equation: 



9(1-y)/2=-y

We move all terms to the left:

9(1-y)/2-(-y)=0

We add all the numbers together, and all the variables

9(-1y+1)/2-(-1y)=0

We get rid of parentheses

9(-1y+1)/2+1y=0

We multiply all the terms by the denominator


9(-1y+1)+1y*2=0

We multiply parentheses

-9y+1y*2+9=0

Wy multiply elements

-9y+2y+9=0

We add all the numbers together, and all the variables

-7y+9=0

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

-7y=-9

y=-9/-7

y=1+2/7

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