#964 · Algebra · Linear equations

Solve linear fractional equation

Solve for $x$ the equation $\frac{( m + n ) x - ( a - b )}{( m - n ) x - ( a + b )} = \frac{( m + n ) x + a + c}{( m - n ) x + a - c} .$

~5 minAnswer checked instantlyCross‑multiplicationLinear equations

H. S. Hall & S. R. Knight, Higher Algebra (1891) · Ch. II. Proportion, Examples II, No. 15

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Checked against the answer in H. S. Hall & S. R. Knight, Higher Algebra (1891).