Question

Find the value of x and the value of y.

A.
x = 15, y = 10
B.
x = 20, y = 50
C.
x = 50, y = 10
D.
x = 50, y = 20

Answer 1

well you can substitute

Answer 2

I substituted and the numbers are all crazy, none of them match

Answer 3

the two angles on the left add up to 180 since they're on the same line
the two angles on the right add up to 180, using the same reasoning

(5x-100)+(x-20) = 180
(3y)+(y+140) = 180

solve for x and y