-42+9y=12

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Solution for -42+9y=12 equation: 



-42+9y=12

We move all terms to the left:

-42+9y-(12)=0

We add all the numbers together, and all the variables

9y-54=0

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

9y=54

y=54/9

y=6

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