15y-20=55

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Solution for 15y-20=55 equation: 



15y-20=55

We move all terms to the left:

15y-20-(55)=0

We add all the numbers together, and all the variables

15y-75=0

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

15y=75

y=75/15

y=5

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