(15x-6x)除以3=81
问题描述:
(15x-6x)除以3=81
答
(15x-6x)除以3=81
9x/3=81
9x=243
x=27
(15x-6x)除以3=81
(15x-6x)除以3=81
9x/3=81
9x=243
x=27