42=-y-2y

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Solution for 42=-y-2y equation: 



42=-y-2y

We move all terms to the left:

42-(-y-2y)=0

We add all the numbers together, and all the variables

-(-3y)+42=0

We get rid of parentheses

3y+42=0

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

3y=-42

y=-42/3

y=-14

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