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y+2y+2y+2y+2y+2=30
We move all terms to the left:
y+2y+2y+2y+2y+2-(30)=0
We add all the numbers together, and all the variables
9y-28=0
We move all terms containing y to the left, all other terms to the right
9y=28
y=28/9
y=3+1/9
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