217=56-y

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Solution for 217=56-y equation: 



217=56-y

We move all terms to the left:

217-(56-y)=0

We add all the numbers together, and all the variables

-(-1y+56)+217=0

We get rid of parentheses

1y-56+217=0

We add all the numbers together, and all the variables

y+161=0

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

y=-161

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