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4.9=2.2-0.4y
We move all terms to the left:
4.9-(2.2-0.4y)=0
We add all the numbers together, and all the variables
-(-0.4y+2.2)+4.9=0
We get rid of parentheses
0.4y-2.2+4.9=0
We add all the numbers together, and all the variables
0.4y+2.7=0
We move all terms containing y to the left, all other terms to the right
0.4y=-2.7
y=-2.7/0.4
y=-6+0.3/0.4
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