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Solve for r
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r-2+4=5
Variable r cannot be equal to 2 since division by zero is not defined. Multiply both sides of the equation by r-2.
r+2=5
Add -2 and 4 to get 2.
r=5-2
Subtract 2 from both sides.
r=3
Subtract 2 from 5 to get 3.