7-y-7=-1

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Solution for 7-y-7=-1 equation: 



7-y-7=-1

We move all terms to the left:

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

We add all the numbers together, and all the variables

-1y+1=0

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

-y=-1

y=-1/-1

y=1

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