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20 December, 12:56

0.25 r - 0.125 + 0.5 r = 0.5 + r. Solve for r.

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  1. 20 December, 13:26
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    0.25r - 0.125 + 0.5r = 0.5 + r

    0.75r - 0.125 = 0.5 + r |add 0.125 to both sides

    0.75r = 0.625 + r |subtract r from both sides

    -0.25r = 0.625 |divide both sides by (-0.25)

    r = - 2.5
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