21y=63-10y

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Solution for 21y=63-10y equation: 



21y=63-10y

We move all terms to the left:

21y-(63-10y)=0

We add all the numbers together, and all the variables

21y-(-10y+63)=0

We get rid of parentheses

21y+10y-63=0

We add all the numbers together, and all the variables

31y-63=0

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

31y=63

y=63/31

y=2+1/31

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