三、解方程.( 要用竖式啊)1.2X-2.8*2.5=8.962.4x+12*3=1003.3x+34.6+13.4=111.3
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/29 01:43:20
![三、解方程.( 要用竖式啊)1.2X-2.8*2.5=8.962.4x+12*3=1003.3x+34.6+13.4=111.3](/uploads/image/z/8790720-24-0.jpg?t=%E4%B8%89%E3%80%81%E8%A7%A3%E6%96%B9%E7%A8%8B.%EF%BC%88+%E8%A6%81%E7%94%A8%E7%AB%96%E5%BC%8F%E5%95%8A%EF%BC%891.2X-2.8%2A2.5%3D8.962.4x%2B12%2A3%3D1003.3x%2B34.6%2B13.4%3D111.3)
三、解方程.( 要用竖式啊)1.2X-2.8*2.5=8.962.4x+12*3=1003.3x+34.6+13.4=111.3
三、解方程.( 要用竖式啊)
1.2X-2.8*2.5=8.96
2.4x+12*3=100
3.3x+34.6+13.4=111.3
三、解方程.( 要用竖式啊)1.2X-2.8*2.5=8.962.4x+12*3=1003.3x+34.6+13.4=111.3
1.2X-2.8*2.5=8.96
2x=8.96+7
x=15.96/2
x=7.98
2.4x+12*3=100
4x=100-36
x=64/4
x=16
3.3x+34.6+13.4=111.3
3x=111.3-48
x=63.3/3
x=21.1
5X+3(9-x)=37 5x+27-3x=37 5x-3x=37-27 2x=10 x=5 42x+35(6-x)=231 42x+35*6-35x=231 42x-35x=231-35*6 7x=231-210 7x=21
1.2X-2.8*2.5=8.96
x=7.98
2.4x+12*3=100
x=16
3.3x+34.6+13.4=111.3
x=21.1