81*2+8y=121.5

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Solution for 81*2+8y=121.5 equation: 



81*2+8y=121.5

We move all terms to the left:

81*2+8y-(121.5)=0

We add all the numbers together, and all the variables

8y+40.5=0

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

8y=-40.5

y=-40.5/8

y=-5+0.5/8

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