Resposta :
4x - 1/3x = 187
4x/1 - 1x/3 = 187/1
(4x/1)/3 - (1x/3)/1 = (187/1)/3
12x -x = 561
11x = 561
x= 561/11
x= 51
Agora,a prova dos 9
51.4 - 51/3= 187
204 - 17 = 187 (ok)
4x/1 - 1x/3 = 187/1
(4x/1)/3 - (1x/3)/1 = (187/1)/3
12x -x = 561
11x = 561
x= 561/11
x= 51
Agora,a prova dos 9
51.4 - 51/3= 187
204 - 17 = 187 (ok)
4x - 1/3x = 187
4x/1 - 1x/3 = 187/1
(4x/1)/3 - (1x/3)/1 = (187/1)/3
12x -x = 561
11x = 561
x= 561/11
x= 51
Agora,a prova dos 9
51.4 - 51/3= 187
204 - 17 = 187
4x/1 - 1x/3 = 187/1
(4x/1)/3 - (1x/3)/1 = (187/1)/3
12x -x = 561
11x = 561
x= 561/11
x= 51
Agora,a prova dos 9
51.4 - 51/3= 187
204 - 17 = 187