Solve the following systems of equations:x + y = 5xyx + 2y = 13xy, x – InterviewSolution

1.

Solve the following systems of equations:x + y = 5xyx + 2y = 13xy, x ≠ 0, y ≠ 0

Answer»

x + y = 5xy

x + 2y = 13xy, x ≠ 0, y ≠ 0

Subtracting the two eq.

⇒ - y = - 8xy

⇒ x = 1/8

Thus,

1/8 + y = 5y/8

⇒ y = 1/3

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