0.6(x-0.4)+3.8=1.2x+0.56

问题描述:

0.6(x-0.4)+3.8=1.2x+0.56

0.6x-0.24+3.8=1.2x+0.56
0.6x=3.8-0.56-0.24
0.6x=3
x=5