Respuesta :

naharkitrishna

Answer:

x=50

Step-by-step explanation:

[tex]x + x + x + 30= 180[/tex]

[tex]3x + 30 = 180[/tex]

[tex]3x = 180 - 30[/tex]

[tex]x = 150 \div 3[/tex]

[tex]x = 50[/tex]