(50+x)×4=384解:(50+x)=384÷4 (50+x)=96 x=96-50 x=46
(50+x)×4=384解:200+4X=384 4X=184 X=46
解:200+4x=384,4x=184,x=46
解:200+4x=3844x=184x=46
(50+x)×4=38450+x=384÷450+x=96x=96-50x=46