<human>:  Rebecca bought 22 items for her camping trip, including tent stakes, packets of drink mix, and bottles of water. She bought 3 times as many packets of drink mix as tent stakes. She also bought 2 more bottles of water than she did tent stakes. How many tent stakes did she buy?
<bot>: Define a variable ** Let x represent the number of tent stakes
How many packets of drink mix did Rebecca buy? ** Drink Mix: 3x
How many bottles of water did Rebecca buy? ** Bottles of Water: x+2
Write an equation ** Total: x+3x+x+2=22
Combine like terms ** 5x+2=22
Subtract 2 from both sides ** 5x=20
Divide by 5 ** x=<<4=4>>4 tent stakes
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