42-30=20+6y

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Solution for 42-30=20+6y equation: 



42-30=20+6y

We move all terms to the left:

42-30-(20+6y)=0

We add all the numbers together, and all the variables

-(6y+20)+42-30=0

We add all the numbers together, and all the variables

-(6y+20)+12=0

We get rid of parentheses

-6y-20+12=0

We add all the numbers together, and all the variables

-6y-8=0

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

-6y=8

y=8/-6

y=-1+1/3

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