Solve for r
r = \frac{54}{5} = 10\frac{4}{5} = 10.8
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5r=9\times 6
Variable r cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 9r, the least common multiple of 9,r.
5r=54
Multiply 9 and 6 to get 54.
r=\frac{54}{5}
Divide both sides by 5.
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