7y-21=-10+5y

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Solution for 7y-21=-10+5y equation: 



7y-21=-10+5y

We move all terms to the left:

7y-21-(-10+5y)=0

We add all the numbers together, and all the variables

7y-(5y-10)-21=0

We get rid of parentheses

7y-5y+10-21=0

We add all the numbers together, and all the variables

2y-11=0

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

2y=11

y=11/2

y=5+1/2

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