2(5-y)-y=9

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Solution for 2(5-y)-y=9 equation: 



2(5-y)-y=9

We move all terms to the left:

2(5-y)-y-(9)=0

We add all the numbers together, and all the variables

2(-1y+5)-y-9=0

We add all the numbers together, and all the variables

-1y+2(-1y+5)-9=0

We multiply parentheses

-1y-2y+10-9=0

We add all the numbers together, and all the variables

-3y+1=0

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

-3y=-1

y=-1/-3

y=1/3

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