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r/3r=5/21
We simplify the equation to the form, which is simple to understand
r/3r=5/21
We move all terms containing r to the left and all other terms to the right.
0=0.23809523809524-0.33333333333333
We simplify left and right side of the equation.
0=-0.095238095238092
0=-0.095238095238092
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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