Solve the following pair of linear equations:px + qy = p - q qx-py = – InterviewSolution

1.

Solve the following pair of linear equations:px + qy = p - q qx-py = p + q

Answer»

px + qy = p - q qx - py = p + q

multiply first equation by p and second equation by q and add both the equations

p*px + pqy + q*qx - pqy = p*p - pq + pq + q*q (p*p+q*q)x = p*p + q*q so x = 1 p + qy = p - q so y = -1

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