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6.7b+6.72-1.4b=-5.74+3.9b
We move all terms to the left:
6.7b+6.72-1.4b-(-5.74+3.9b)=0
We add all the numbers together, and all the variables
6.7b-1.4b-(3.9b-5.74)+6.72=0
We add all the numbers together, and all the variables
5.3b-(3.9b-5.74)+6.72=0
We get rid of parentheses
5.3b-3.9b+5.74+6.72=0
We add all the numbers together, and all the variables
1.4b+12.46=0
We move all terms containing b to the left, all other terms to the right
1.4b=-12.46
b=-12.46/1.4
b=-8+1/1.1111111111111
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