Question

Find the values of x and y in the diagram shown below.

Answer 1

Answer:

2x+90+y=180→ ①

{y+10}+x+2x+y=180 →②

①2x+y=90

②3x+2y=170

①X2→4x+2y=180

② →3x+2y=170

____(-)_(-)__(-)______subract

x=10

①→4(10) +2y=180

40+2y=180

2y=180-40

2y=140

y=70

Solution : {x,y}={10,70}