Question: A local electronics store will sell seven AC adaptors and two rechargeable flashlights for $86, or three AC adaptors and four rechargeable flashlights for $84.

A local electronics store will sell seven AC adaptors and two rechargeable flashlights for $86, or three AC adaptors and four rechargeable flashlights for $84. What is the price of a single AC adaptor and a single rechargeable flashlight?

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