Question

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apple + apple + apple = 18
cherry + apple = 9
apple + banana + banana = 22
apple + cherry + banana = ?

Explanation:

Step1: Find apple value

Let apple = $A$. $3A = 18$, so $A = \frac{18}{3} = 6$

Step2: Find cherry value

Let cherry = $C$. $C + A = 9$, substitute $A=6$: $C = 9 - 6 = 3$

Step3: Find banana value

Let banana = $B$. $A + 2B = 22$, substitute $A=6$: $2B = 22 - 6 = 16$, so $B = \frac{16}{2} = 8$

Step4: Calculate final equation

$A + C + B = 6 + 3 + 8$

Answer:

17