X equals five. hope this helps, and have a very brainly day!
Answer:
0.5
Step-by-step explanation:
0.6 - 0.1 = 0.5
Step-by-step explanation:
Remember that the sum of angles on a straight line are supplementary. (180°)
Therefore 3x + 2 + 6x - 20 = 180.
=> 9x - 18 = 180
=> 9x = 198
=> x = 22.
