Respuesta :

1.2x + 3.4 = 10.6
subtract 3.4 from each side
1.2x = 7.2
divide each side by 1.2
x = 6
1.2x + 3.4 = 10.6
          -3.4      -3.4

1.2x = 7.2
^^/1.2   ^^/1.2

x = 6