Question

Two supplementary angles are (2x - 5)" and (7x + 5)", find the angles

Answer 1

Answer:

Since (x - 2)° and (2x + 5)° represent a pair of supplementary angles, then their sum must be equal to 180°. Therefore, the two supplementary angles are 57° and 123°.

Answer 2

Step-by-step explanation:

first angle = (2x - 5)

second angle =.(7x +5)

(2x - 5 ) + (7x + 5) =180

2x -5 +7x+5=180

9x = 180

x = 180/9

x =20