7y=40-y

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Solution for 7y=40-y equation: 



7y=40-y

We move all terms to the left:

7y-(40-y)=0

We add all the numbers together, and all the variables

7y-(-1y+40)=0

We get rid of parentheses

7y+1y-40=0

We add all the numbers together, and all the variables

8y-40=0

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

8y=40

y=40/8

y=5

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