(-1+2y)+y=8

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Solution for (-1+2y)+y=8 equation: 



(-1+2y)+y=8

We move all terms to the left:

(-1+2y)+y-(8)=0

We add all the numbers together, and all the variables

(2y-1)+y-8=0

We add all the numbers together, and all the variables

y+(2y-1)-8=0

We get rid of parentheses

y+2y-1-8=0

We add all the numbers together, and all the variables

3y-9=0

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

3y=9

y=9/3

y=3

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