(1/4X+52)=5/7X = = X=112
问题描述:
(1/4X+52)=5/7X = = X=112
答
方程两边同时乘以28,就变成7X+52*28=5*4X 13X=52*28 X=112
(1/4X+52)=5/7X = = X=112
方程两边同时乘以28,就变成7X+52*28=5*4X 13X=52*28 X=112