9y-10+12y-20=180

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Solution for 9y-10+12y-20=180 equation: 



9y-10+12y-20=180

We move all terms to the left:

9y-10+12y-20-(180)=0

We add all the numbers together, and all the variables

21y-210=0

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

21y=210

y=210/21

y=10

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