Question

two supplementary angles are (x+35)degree and (3x-55)degree. What is the value of x

Answer 1

x+35+3x-55=180

4x-20=180

4x=100

x=100/4

x=25

Answer 2

let the supplement angle be=180-x
x+35+3x-55=180-x
4x-20=180-x
5x=180+20
x=180/5
x=36