Answer:
y=20x+217
Step-by-step explanation:
28
Since, Sum of triangle is equal to 180°
180 = 2x + 50 + 3x - 10
180 = 5x + 40
180 - 40 = 5x
140 = 5x
140/5 = x
28 = x
x=3.18,x=-5.18It have two answers