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7 August, 06:37

0.3r=2.1. whats the solution

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  1. 7 August, 08:43
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    In order to find "r", you need to isolate it. So in order to isolate it, you do the inverse operation. In this case, it would be division because 0.3 is being multiplied by "r". So you divide by 0.3 on both sides to get 7.
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