x+2x+(x+60)=180 tentukan nilai x

Kelas 7 Matematika
Bab Persamaan Linear Satu Variabel

x + 2x + (x + 60) = 180
4x = 180 - 60
x = 120/4
x = 30

x + 2x + (x + 60) = 180
3x + x + 60 = 180
4x + 60 = 180
4x = 180 - 60
4x = 120
x = 120/4
x = 30