8y-30=4y+90

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Solution for 8y-30=4y+90 equation: 



8y-30=4y+90

We move all terms to the left:

8y-30-(4y+90)=0

We get rid of parentheses

8y-4y-90-30=0

We add all the numbers together, and all the variables

4y-120=0

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

4y=120

y=120/4

y=30

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