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2.8=0.9-1.9y
We move all terms to the left:
2.8-(0.9-1.9y)=0
We add all the numbers together, and all the variables
-(-1.9y+0.9)+2.8=0
We get rid of parentheses
1.9y-0.9+2.8=0
We add all the numbers together, and all the variables
1.9y+1.9=0
We move all terms containing y to the left, all other terms to the right
1.9y=-1.9
y=-1.9/1.9
y=-1
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