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22 February, 07:03

Solve for r.

-2r = 18

P=

+3
Answers (1)
  1. 22 February, 08:08
    0
    -2r = 18

    Divide by - 2 to get positive r. Divide by - 2 for 18.

    -2r/-2 = 18/-2

    Cross out - 2 and - 2, then divide by 2.

    r = - 9

    Answer: r = - 9
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