If the pair of equations frac{5}{x} - frac{3} | vedclass

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(D) Let $u = \frac{1}{x}$ and $v = \frac{1}{y}$.The given equations become:$5u - 3v = 9$  ---$(1)$$3u - 5v = 7$  ---$(2)$Subtracting equation $(2)$ fr

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$2$

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(D) Let $u = \frac{1}{x}$ and $v = \frac{1}{y}$.The given equations become:$5u - 3v = 9$  ---$(1)$$3u - 5v = 7$  ---$(2)$Subtracting equation $(2)$ from equation $(1)$:$(5u - 3v) - (3u - 5v) = 9 - 7$$2u + 2v = 2$$u + v = 1$  ---$(3)$Adding equation $(1)$ and equation $(2)$:$(5u - 3v) + (3u - 5v) = 9 + 7$$8u - 8v = 16$$u - v = 2$  ---$(4)$Since $u = \frac{1}{x}$ and $v = \frac{1}{y}$,the value of $\frac{1}{x} - \frac{1}{y}$ is $u - v = 2$.

If the pair of equations $\frac{5}{x} - \frac{3}{y} = 9$ and $\frac{3}{x} - \frac{5}{y} = 7$,then $\frac{1}{x} - \frac{1}{y} = \ldots$

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