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20 October, 01:52

6qr+7rs-2st=-9 solve for r

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  1. 20 October, 02:33
    0
    solve for r.

    6qr+7rs-2st=-9

    Add 2st to both sides.

    6qr+7rs-2st+2st=-9+2st

    6qr+7rs=2st-9

    Factor out variable r.

    r (6q+7s) = 2st-9

    Divide both sides by 6q+7s.

    r (6q+7s) / 6q+7s = 2st-9 / 6q+7s

    r = 2st-9 / 6q+7s
  2. 20 October, 02:39
    0
    6qr + 7rs - 2st = - 9

    6qr + 7rs = - 9 + 2st

    r (6q + 7s) = - 9 + 2st

    r = - 9 + 2st / 6q + 7s Ans
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