Răspuns :
6x + 16 = 9x - 11 I + 11
6x + 16 + 11 = 9x
6x + 27 = 9x
27 = 9x - 6x
27 = 3x
x = 27 : 3
x = 9 lei ( costa o discheta )
6 X 9 + 16 = 54 + 16 = 70 lei ( are fetita )
6x + 16 + 11 = 9x
6x + 27 = 9x
27 = 9x - 6x
27 = 3x
x = 27 : 3
x = 9 lei ( costa o discheta )
6 X 9 + 16 = 54 + 16 = 70 lei ( are fetita )