Question

If two supplementary angles are
3x - 10° and 5x + 30° , find the value of x

Answer 1

Step-by-step explanation:

Supplementary angles = Sum is 180°

➨ (3x - 10) + (5x + 30) = 180

➨ 8x + 20 = 180

➨ 8x = 180 - 20

➨ 8x = 160

➨ x = 160/8

➨ x = 20

Value of x = 20