Question

find the value of the letters given in each of the figures below in my book the answer is x130 and y 80 pls tell me the steps​

Answer 1

Step-by-step explanation:

it is a straight line

so the angle of straight line is 180degrees

so,3x+x+20=180

4x+20=180

4x=180-20

4x=160

x=160/4

x=40