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-50r_{10}
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-50r_{10}
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50\times \frac{-52}{52}r_{10}
Subtract 71 from 19 to get -52.
50\left(-1\right)r_{10}
Divide -52 by 52 to get -1.
-50r_{10}
Multiply 50 and -1 to get -50.
50\times \frac{-52}{52}r_{10}
Subtract 71 from 19 to get -52.
50\left(-1\right)r_{10}
Divide -52 by 52 to get -1.
-50r_{10}
Multiply 50 and -1 to get -50.
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