.9=0.8y-0.9

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Solution for .9=0.8y-0.9 equation: 



.9=0.8y-0.9

We move all terms to the left:

.9-(0.8y-0.9)=0

We add all the numbers together, and all the variables

-(0.8y-0.9)+0.9=0

We get rid of parentheses

-0.8y+0.9+0.9=0

We add all the numbers together, and all the variables

-0.8y+1.8=0

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

-0.8y=-1.8

y=-1.8/-0.8

y=2+0.2/0.8

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