5y+(-2y)-7=20

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Solution for 5y+(-2y)-7=20 equation: 



5y+(-2y)-7=20

We move all terms to the left:

5y+(-2y)-7-(20)=0

We add all the numbers together, and all the variables

5y+(-2y)-27=0

We get rid of parentheses

5y-2y-27=0

We add all the numbers together, and all the variables

3y-27=0

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

3y=27

y=27/3

y=9

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