4y-42=42

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Solution for 4y-42=42 equation: 



4y-42=42

We move all terms to the left:

4y-42-(42)=0

We add all the numbers together, and all the variables

4y-84=0

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

4y=84

y=84/4

y=21

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