(-1+2y)=7

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Solution for (-1+2y)=7 equation: 



(-1+2y)=7

We move all terms to the left:

(-1+2y)-(7)=0

We add all the numbers together, and all the variables

(2y-1)-7=0

We get rid of parentheses

2y-1-7=0

We add all the numbers together, and all the variables

2y-8=0

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

2y=8

y=8/2

y=4

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