Question

Help me plz on the promblem above

Answer 1

These two angles are on a straight line meaning they add up to 180
60 + 4x + 20 = 180
combine like terms
80 + 4x = 180
subtract 80 from both sides
4x = 100
divide both sides by 4
x = 25

now to solve for the angle
4x + 20
4(24) + 20
100 + 20
120 is the angle

The answer is b.

Hope this helps :)

Answer 2

Since the measure of a straight angle is 180º, 180 - 60 is 120, the measure of the angle. Now solve for x.
4x + 20 = 120
Subtract 20 from each side to get 4x = 100.
Divide each side by 4 to get x = 25. The answer is the second one.
Hope this helps!