X:36+X=1:3怎么解？x/36 + x =1/3两边乘以 36x + 36x = 1237x = 12x = 37 分之 12 如果有括号的话)X : (36+X)=1:3怎么解？x/(36 + x) =1/3两边乘以 3(36+x)3x = 36-x4x = 36x = 9估计是后面这个吧
