For 
, find all values of x and y such that 
and 
simultaneously. 
Definitions:
Payback Period
The length of time it takes for an investment to generate enough cash flow to recover its original cost, a measure of investment risk.
Investment Project
A project that allocates capital with the aim of generating returns over time, often involving infrastructure, real estate, or other assets.
Straight-Line Depreciation
A method of allocating the cost of a tangible asset over its useful life in equal annual increments.
Net Present Value
The disparity between the current value of cash inflows and outflows over a specific timeframe.
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