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28=4b+82
We move all terms to the left:
28-(4b+82)=0
We get rid of parentheses
-4b-82+28=0
We add all the numbers together, and all the variables
-4b-54=0
We move all terms containing b to the left, all other terms to the right
-4b=54
b=54/-4
b=-13+1/2
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