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-17.4-4.2b=-9b-1.42+6.5b
We move all terms to the left:
-17.4-4.2b-(-9b-1.42+6.5b)=0
We add all the numbers together, and all the variables
-4.2b-(-2.5b-1.42)-17.4=0
We get rid of parentheses
-4.2b+2.5b+1.42-17.4=0
We add all the numbers together, and all the variables
-1.7b-15.98=0
We move all terms containing b to the left, all other terms to the right
-1.7b=15.98
b=15.98/-1.7
b=-9+0.68/1.7
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