Respuesta :

Panoyin
    4(x - 7) + 12 = 20
4(x) - 4(7) + 12 = 20
     4x - 28 + 12 = 20
             4x - 16 = 20
                 + 16 + 16
                     4x = 36
                      4      4
                       x = 9
X=9 You ise the distribution property and get 4x-28+12=20. Combine the like terms amd you get 4x -16=20. Add 166 to both sides and you get 4x =36. Divide by four and you get x=9