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1.6-2b=-4.2
We move all terms to the left:
1.6-2b-(-4.2)=0
We add all the numbers together, and all the variables
-2b+5.8=0
We move all terms containing b to the left, all other terms to the right
-2b=-5.8
b=-5.8/-2
b=2+1/1.1111111111111
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