Question

If a -3b=20° ; find
a and b
​

Answer 1

hello,

Answer:

a = 140°

b = 40°

Step-by-step explanation:

since a straight line ,

a + b = 180°_______________(1)

another eq as given in Q ,

a - 3b = 20°________________(2)

from eq 1 & 2

subtracting them ,

4b = 160°

b = 40°

now substituting this in eq 1

a + 40 = 180

a = 140°

good day ahead

Answer 2

Answer:

I hope you will understand this .