81-9y=-27

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Solution for 81-9y=-27 equation: 



81-9y=-27

We move all terms to the left:

81-9y-(-27)=0

We add all the numbers together, and all the variables

-9y+108=0

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

-9y=-108

y=-108/-9

y=+12

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