7y-15+3y=55

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Solution for 7y-15+3y=55 equation: 



7y-15+3y=55

We move all terms to the left:

7y-15+3y-(55)=0

We add all the numbers together, and all the variables

10y-70=0

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

10y=70

y=70/10

y=7

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