Respuesta :

sonia8937

Answer:

x=17

Step-by-step explanation:

  • 3x+16+45+68=180
  • 3x+129=180
  • 3x=180-129
  • 3x=51
  • x=51/3
  • x=17

I hope you understood well !

devishri1977

Answer:

x = 17

Step-by-step explanation:

3x + 16 +45 + 68 = 180

             3x + 129 = 180

Subtract 129 form both sides

          3x + 129 -129 = 180 - 129

                           3x = 51

Divide both sides by 3

                         3x/3 = 51/3

                              x = 17