Question

Help how do I do it?
A
B
C
D

Answer 1

C

x = 50

Explanation:

If the two angles add up to 140 then that means 40° + 2x° equals 140

Set up an equation from that evaluation and solve

40 + 2x = 140

Subtract 40 from both sides

2x = 100

Divide both sides by two

x = 50

Hope this helps.