-7y=7y+42

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Solution for -7y=7y+42 equation: 



-7y=7y+42

We move all terms to the left:

-7y-(7y+42)=0

We get rid of parentheses

-7y-7y-42=0

We add all the numbers together, and all the variables

-14y-42=0

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

-14y=42

y=42/-14

y=-3

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