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5 August, 15:38
6qr+7rs-2st=-9 solve for r
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Akira Owen
5 August, 16:20
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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
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Ariella Collins
5 August, 17:34
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6qr + 7rs - 2st = - 9
6qr + 7rs = - 9 + 2st
r (6q + 7s) = - 9 + 2st
r = - 9 + 2st / 6q + 7s Ans
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