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r+9/r+6=5/4
We simplify the equation to the form, which is simple to understand
r+9/r+6=5/4
We move all terms containing r to the left and all other terms to the right.
0=+1.25-1-6
We simplify left and right side of the equation.
0=-5.75
0=-5.75
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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