Question 89455
 A customer buys a tent, 3 sleeping bags and 2 camp stools for $175. 
The price of the tent is 6 times the cost of a camp stool. 
The cost of the sleeping bag is $40 more then the cost of a camp stool.
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t+3b+2s = 175
t=6s
b=s+40
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EQUATION:
Substitute to solve for s:
6s+3(s+40)+2s=175
6s+3s+120+2s=175
11s = 55
s = $5 (price of a stool)
t=6s=$30 (price of a tent)
b=s+40=$45 (price of a bag)
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Cheers,
Stan H.