3y-120=90

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Solution for 3y-120=90 equation: 



3y-120=90

We move all terms to the left:

3y-120-(90)=0

We add all the numbers together, and all the variables

3y-210=0

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

3y=210

y=210/3

y=70

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