3/4x-5%x=17.50.75x-0.05x=17.5 0.7x =17.5 x=25已验算，保正确满意请点采纳
4分之3x-5%ⅹ=17.53/4x-5%ⅹ=17.50.75ⅹ-0.05ⅹ=17.50.7ⅹ=17.5=25
