解(5-0.1x)÷1.2-(x-0.1)÷2.4=1

问题描述:

解(5-0.1x)÷1.2-(x-0.1)÷2.4=1

  • (5-0.1x)÷1.2-(x-0.1)÷2.4=1

  • (5-0.1x)×2-(x-0.1)=2.4

  • 10-0.2x-x+0.1=2.4

  • -1.2x=-7.7

  • x=77/12

(10-0.2x)÷2.4-(x-0.1)÷2.4=1
10-0.2x-(x-0.1)=1×2.4
11-1.2x=2.4
1.2x=7.7
x=77/12

[2(5-0.1x)-(x-0.1)]/2.4=1
10-0.2x-x+0.1=2.4
7.7=1.2x
x=77/12=6又5/12

2(5-0.1x)-(x-0.1)=2.4
10-0.2x-x+0.1=2.4
-1.2x=-7.7

x=77/12

两边乘以2.4,化为:
2(5-0.1x)-x+0.1=2.4
10-0.2x-x+0.1=2.4
-1.2x=2.4-10-0.1
x=-7.7÷(-1.2)
x=12分之77

两边乘2.4
2(5-0.1x)-(x-0.1)=2.4
10-0.2x-x+0.1=2.4
x+0.2x=10+0.1-2.4
1.2x=7.7
x=7.7÷1.2
x=6又12分之5