5038-1.99+12.62-9.01怎么算(简便) 2/5(x-1.4)=1 解方程对不起打错了! 应该是5.38-1.99 !
来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/24 07:50:14
5038-1.99+12.62-9.01怎么算(简便) 2/5(x-1.4)=1 解方程对不起打错了! 应该是5.38-1.99 !
5038-1.99+12.62-9.01怎么算(简便) 2/5(x-1.4)=1 解方程
对不起打错了! 应该是5.38-1.99 !
5038-1.99+12.62-9.01怎么算(简便) 2/5(x-1.4)=1 解方程对不起打错了! 应该是5.38-1.99 !
5.38-1.99+12.62-9.01
=(5.38+12.62)-(1.99+9.01)
=18-11
=7
2/5(x-1.4)=1
x-1.4=5/2
x=5/2+1.4
x=3.9
5038-1.99+12.62-9.01
=(5038+12.62)-(1.99+9.01)
=5050.62-11
=5039.62
2/5(x-1.4)=1
2(x-1.4)=5
2x-2.8=5
2x=7.8
x=3.9
5.38-1.99+12.62-9.01
=(5.38+12.62)-(1.99+9.01)
=18-11
=7
2/5(x-1.4)=1
2(x-1.4)=5
2x-2.8=5
2x=7.8
x=3.9
5.38-1.99+12.62-9.01
=(5.38+12.62)-(1.99+9.01)
=18-10
=8
2/5(x-1.4)=1
x-1.4=5/2
x=1.1
5.38-1.99+12.62-9.1
=(5.38+12.62)-(1.99+9.1)
=18-10
=8
50.38-1.99+12.62-9.01
=50.38+12.62-1.99-9.01
=63-11
=52
2/5(x-1.4)=1
x-1.4=2/5
x=1.4+2/5
x=1.8
不懂可追问,有帮助请采纳,谢谢!