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-0.2b-17.69=3.9b-4.1b+3.91
We simplify the equation to the form, which is simple to understand
-0.2b-17.69=3.9b-4.1b+3.91
We move all terms containing b to the left and all other terms to the right.
-0.2b-3.9b+4.1b=+3.91+17.69
We simplify left and right side of the equation.
b=+21.6
0=21.6
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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