(5x-0.3)/0.4=(3x-1.2)/0.6-(1.8-8x)/1.2 两边乘1.2
3(5x-0.3)=2(3x-1.2)-(1.8-8x)
15x-0.9=6x-2.4-1.8+8x
15x-0.9=14x-4.2
15x-14x=0.9-4.2
x=-3.3
(5x-0.3)/0.4=(3x-1.2)/0.6-(1.8-8x)/1.2 两边乘1.2
3(5x-0.3)=2(3x-1.2)-(1.8-8x)
15x-0.9=6x-2.4-1.8+8x
15x-0.9=14x-4.2
15x-14x=0.9-4.2
x=-3.3