(a) An angle and its complement add to 90°.
... 41° + complement = 90°
... complement = 49° . . . . . . . . subtract 41° from both sides of the equation
(b) An angle and its supplement add to 180°.
... 35° + supplement = 180°
... supplement = 145° . . . . . . . . . subtract 35° from both sides of the equation
