Question

If 2x +70° and 3x+20° are supplementary angles determine the value of x?

Answer 1

Answer:

18

Step-by-step explanation:

supplementary =180 degrees

2x+70+3x+20= 180

2x+3x + 70+20=180

5x + 90 = 180

5x = 180-90

X= 90/5

X= 18

Answer 2

Answer:

value of x = 18 degree

Step-by-step explanation:

angles are supplementary

2x+70+3x+20= 180

5x + 90 = 180

5x = 180-90

5x = 90

x= 90/5

x= 18