2X-2.8*2=10.4

问题描述:

2X-2.8*2=10.4

2X-2.8*2=10.4
2X-5.6=10.4
2X=10.4-5.6
X=4.8/2
X=2.4

2x = 10.4 + 2.8*2
2x = 16
x = 8

2X-2.8*2=10.4
2X=2.8*2+10.4
X=(2.8*2+10.4)/2
x=8