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2.4b-7=b-15.4
We move all terms to the left:
2.4b-7-(b-15.4)=0
We get rid of parentheses
2.4b-b+15.4-7=0
We add all the numbers together, and all the variables
1.4b+8.4=0
We move all terms containing b to the left, all other terms to the right
1.4b=-8.4
b=-8.4/1.4
b=-6+1.7763568394E-15/1.4
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