(2y+30)+(4y-30)=90

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Solution for (2y+30)+(4y-30)=90 equation: 



(2y+30)+(4y-30)=90

We move all terms to the left:

(2y+30)+(4y-30)-(90)=0

We get rid of parentheses

2y+4y+30-30-90=0

We add all the numbers together, and all the variables

6y-90=0

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

6y=90

y=90/6

y=15

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