1) 3х-3°=102
3х=102+3°
3х=105°
х=35
2)
2х-6°=78°
2х=78°+6°
2х=84°
x=42°
3)
5x+15=180°
5x=180°-15
5x= 165°
x=33
1) 3х-3°=102
3х=102+3°
3х=105°
х=35
2)
2х-6°=78°
2х=78°+6°
2х=84°
x=42°
3)
5x+15=180°
5x=180°-15
5x= 165°
x=33