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2.57b+5=25.92
We move all terms to the left:
2.57b+5-(25.92)=0
We add all the numbers together, and all the variables
2.57b-20.92=0
We move all terms containing b to the left, all other terms to the right
2.57b=20.92
b=20.92/2.57
b=8+0.36/2.57
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