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2.8=2y-1.4
We move all terms to the left:
2.8-(2y-1.4)=0
We get rid of parentheses
-2y+1.4+2.8=0
We add all the numbers together, and all the variables
-2y+4.2=0
We move all terms containing y to the left, all other terms to the right
-2y=-4.2
y=-4.2/-2
y=2+0.2/2
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