x+0.6x=0.4解:(1+0.6)x=0.41.6x=0.4x=0.25检验:把x=0.25代入原方程得:左边=0.25+0.6×0.25 =0.25+0.15 =0.4 =右边所以,x=0.25是原方程的解。
1.6x=0.4x=0.25
x + 0.6x =0.4(1+0.6)x =0.41.6x =0.4x=0.4/1.6x=0.25
0.25
1.6x =0.4x =4分之1检验:1.6*4分之1=0.4