Question 137065
7r/12=-14
Divide both sides by 7 to get:
r/12 = -2
Multiply both sides by 12 to get:
r = -24
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1/3s+7/9=4/3s 

Multiply thru by 9s to get:
3 +7s = 12
7s = 9
s = 9/7
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Chers,
Stan H.