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Cross-Multiplication Method of Finding Solution of a Pair of Linear Equations

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Question

Solve each of the following systems of equations by the method of cross-multiplication:

$m x - n y = m^{2} + n^{2}$

$x + y = 2 m$

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Solution

$x = m + n, y = m - n$

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Cross-Multiplication Method of Finding Solution of a Pair of Linear Equations

Standard X Mathematics