3x加9×0.6等于6解:3x+5.4=6 3x=6-5.4 3x=0.6 x=0.2
3X+9×0.6=6解:3X+5.4=63X=6-5.43X=0.6X=0.6÷3X=0.2
3x+9*0.6=63x+5.4=63x=0.6x=0.2
3x+9×0.6=63x=6-5.43x=0.6x=0.2
不会,怎么办?3x+5.4=0.2