Question

find the value of x ​

Answer 1

Answer:

x + 10 + 2x + 20 = 180

3x + 30 = 180

3x = 180-30

3x = 150

x = 50°

Hence one angle is 60 and other is 120

Answer 2

$x + 10 = 2x + 20 \: (v.o.a) \\ now \: arrnge \\ 2x + 2x + 20 + 10 = 180 \: (l.p) \\ 4x + 30 = 180 \\ 4x = 180 - 30 \\ 4x = 150 \\ x = \frac{150}{4} \\ = \frac{75}{2} \\ = 37.5 \: ans$