Y=3x+9x-30

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Solution for Y=3x+9x-30 equation: 



=3Y+9Y-30

We move all terms to the left:

-(3Y+9Y-30)=0

We add all the numbers together, and all the variables

-(12Y-30)=0

We get rid of parentheses

-12Y+30=0

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

-12Y=-30

Y=-30/-12

Y=2+1/2

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