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b/1.3+5.4=1.8
We move all terms to the left:
b/1.3+5.4-(1.8)=0
We add all the numbers together, and all the variables
b/1.3+3.6=0
We multiply all the terms by the denominator
b+(3.6)*1.3=0
We add all the numbers together, and all the variables
b+4.68=0
We move all terms containing b to the left, all other terms to the right
b=-4.68
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