Respuesta :

mirai123

Answer:

[tex]x=50\º[/tex]

Step-by-step explanation:

We know ∠R+∠S+∠T = 180º

Then,

[tex](x+50\º)+(x+10\º)+(x-30\º) = 180\º[/tex]

[tex]3x+30\º = 180\º[/tex]

[tex]3x = 150\º[/tex]

[tex]x=50\º[/tex]