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-28=-23.2+b
We move all terms to the left:
-28-(-23.2+b)=0
We add all the numbers together, and all the variables
-(b-23.2)-28=0
We get rid of parentheses
-b+23.2-28=0
We add all the numbers together, and all the variables
-1b-4.8=0
We move all terms containing b to the left, all other terms to the right
-b=4.8
b=4.8/-1
b=-4+0.8/1
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