Question

Solve the following equation:

(x - 5)(x + 3) = (x - 7)(x + 4)

Answer 1

(x - 5) (x + 3) = (x - 7)(x + 4)

⇒ x² + 3x - 5x - 15 = x² + 4x - 7x - 28

⇒ -2x - 15 = - 3x - 28

⇒ 3x - 2x = 15 - 28

⇒ x = -13