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7.4+b=-6.8.
We move all terms to the left:
7.4+b-(-6.8.)=0
We add all the numbers together, and all the variables
b+7.4-0=0
We add all the numbers together, and all the variables
b+7.4=0
We move all terms containing b to the left, all other terms to the right
b=-7.4
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