8.1y-7.1y=2.5-6.4

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Solution for 8.1y-7.1y=2.5-6.4 equation: 



8.1y-7.1y=2.5-6.4

We move all terms to the left:

8.1y-7.1y-(2.5-6.4)=0

We add all the numbers together, and all the variables

8.1y-7.1y-(-3.9)=0

We add all the numbers together, and all the variables

y+3.9=0

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

y=-3.9

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