Answer:
sorry i don't know
Step-by-step explanation:
z=55
The two angles form a straight line which is 180 degrees
80 + 2z-10 = 180
Combine line terms
70 +2z = 180
Subtract 70 from each side
70-70 +2z= 180 -70
2z = 110
Divide by 2
2z/2 = 110/2
z = 55
5.36,275,336,535
1st: One Solution
2nd: Multiple Solutions
3rd: No Solution