7y-40=5y-20

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Solution for 7y-40=5y-20 equation: 



7y-40=5y-20

We move all terms to the left:

7y-40-(5y-20)=0

We get rid of parentheses

7y-5y+20-40=0

We add all the numbers together, and all the variables

2y-20=0

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

2y=20

y=20/2

y=10

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