3.1y-2y+1.9y=9

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Solution for 3.1y-2y+1.9y=9 equation: 



3.1y-2y+1.9y=9

We move all terms to the left:

3.1y-2y+1.9y-(9)=0

We add all the numbers together, and all the variables

3y-9=0

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

3y=9

y=9/3

y=3

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