9*10y-7.8=31.1

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Solution for 9*10y-7.8=31.1 equation: 



9*10y-7.8=31.1

We move all terms to the left:

9*10y-7.8-(31.1)=0

We add all the numbers together, and all the variables

9*10y-38.9=0

Wy multiply elements

90y-38.9=0

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

90y=38.9

y=38.9/90

y=13.4137931034/31.0344827586

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