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

User Klathzazt
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2 Answers

5 votes
6qr + 7rs - 2st = -9
6qr + 7rs = -9 + 2st
r ( 6q + 7s ) = -9 + 2st
r = -9 + 2st / 6q + 7s Ans
User Tboerman
by
7.6k points
3 votes
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

User Naxon
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8.2k points
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