7y+21=5+8

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Solution for 7y+21=5+8 equation: 



7y+21=5+8

We move all terms to the left:

7y+21-(5+8)=0

We add all the numbers together, and all the variables

7y+21-13=0

We add all the numbers together, and all the variables

7y+8=0

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

7y=-8

y=-8/7

y=-1+1/7

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