4y-9=71

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Solution for 4y-9=71 equation: 



4y-9=71

We move all terms to the left:

4y-9-(71)=0

We add all the numbers together, and all the variables

4y-80=0

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

4y=80

y=80/4

y=20

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