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-6.9b=-82.8
We move all terms to the left:
-6.9b-(-82.8)=0
We add all the numbers together, and all the variables
-6.9b+82.8=0
We move all terms containing b to the left, all other terms to the right
-6.9b=-82.8
b=-82.8/-6.9
b=11+1/1
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