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b/3-8b/7=68/21
We simplify the equation to the form, which is simple to understand
b/3-8b/7=68/21
Simplifying:
+ 0.333333333333b-8b/7=68/21
Simplifying:
+ 0.333333333333b-1.14285714286b=68/21
Simplifying:
+ 0.333333333333b-1.14285714286b=+3.2380952381
We move all terms containing b to the left and all other terms to the right.
+ 0.333333333333b-1.14285714286b=+3.2380952381
We simplify left and right side of the equation.
-0.809523809524b=+3.2380952381
We divide both sides of the equation by -0.809523809524 to get b.
b=-4
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