Question

One of the two supplementary angles is 20degrees less then 3 times of the other then find them ​

Answer 1

Step-by-step explanation:

Let one of the angle be X

therefore other will be 3x-20

now ATQ,

X+(3x-20)=180°

4x-20=180

4x=160

x=40°

then other will be 100°

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Answer 2

Answer:

LET ONE BE X

THE OTHER BE Y

Y+X=180

3X-20+X=180

4X=200

X=50

Y=3×50-20

Y=130