Answer:
s = 26°
Step-by-step explanation:
The total degrees of a triangle is 180°
1. Create the formula: [tex]180=50+2s+3s[/tex]
2. Solve for S
[tex]180=50+2s+3s\\180=50+5s \\ 180-50=5s \\ 130=5s\\\frac{130}{5} =s \\ 26=s[/tex]
3. Check by plugging in 26
[tex]180=50+2(26)+3(26)\\ 180=50+52+78\\ 180=180[/tex]
