Find the general solution in positive integers, and the least values of x and y which satisfy the equations: 17y−13x=0.
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Solution
⟹Let ′k′ be a positive integer equal to ′x′: ∴y=1317k ′k′ i.e., ′x′ should be multiples of 17 for y to be positive. Similarly, for x to be positive, y should be multiples of 13. ∴ minimum value of x=17 minimum value of y=13