Question

In the adjoining figure, what value of x will make AOB a straight line (2x-10)°and (3x+15)°

Answer 1

2x-10+3x+15=180 (Supplementary)
5x+5=180
5x=175
X=35 degrees

Answer 2

Step-by-step explanation:

AOB is a straight line

Then sum of straight line angles=180

2x-10+3x+15=180

5x+5=180

5x=180-5

x=175/5

x=35