EXPLANATION? use the picture below to find the value of x

1) 57
2) 19
3)180
4)123​

Hello! x = 19

Step-by-step explanation:

This is a supplementary angle! So it will add up to 180 degrees 180 - 123 = 57 so we know something multiplied by 3 will equal 57 and 19 × 3 = 57 so x = 19 Hope this is a good explanation!

its c or d   take a lucky guess my dude