解方程:7x-8=5x+2 2x-(5x-3)=3x-4 4(x+1)-2(x-3)=18x-1=4分之1(2x-1) 3x+2(100-x)=300 4x-3(20-x)=6x-7(11-x)

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/06 01:30:47
解方程:7x-8=5x+22x-(5x-3)=3x-44(x+1)-2(x-3)=18x-1=4分之1(2x-1)3x+2(100-x)=3004x-3(20-x)=6x-7(11-x)解方程:7x-

解方程:7x-8=5x+2 2x-(5x-3)=3x-4 4(x+1)-2(x-3)=18x-1=4分之1(2x-1) 3x+2(100-x)=300 4x-3(20-x)=6x-7(11-x)
解方程:7x-8=5x+2 2x-(5x-3)=3x-4 4(x+1)-2(x-3)=18
x-1=4分之1(2x-1) 3x+2(100-x)=300 4x-3(20-x)=6x-7(11-x)

解方程:7x-8=5x+2 2x-(5x-3)=3x-4 4(x+1)-2(x-3)=18x-1=4分之1(2x-1) 3x+2(100-x)=300 4x-3(20-x)=6x-7(11-x)
7x-8=5x+2 x=5
2x-(5x-3)=3x-4 x=7/6
4(x+1)-2(x-3)=18 x=4
x-1=4分之1(2x-1) x=3/2
3x+2(100-x)=300 x=100
4x-3(20-x)=6x-7(11-x) x=17/6

这是、、、、、、、、、、、小学的吗、、、、、、、

3/2,100

7x-8=5x+2 7x-5x=8+2 2x=10 x=5
2x-(5x-3)=3x-4 .....................................x=6/7
4(x+1-2(x-3)=18 ..........................x=4
x-1=4/1(2x-1)................

全部展开

7x-8=5x+2 7x-5x=8+2 2x=10 x=5
2x-(5x-3)=3x-4 .....................................x=6/7
4(x+1-2(x-3)=18 ..........................x=4
x-1=4/1(2x-1)....................................x=2/3
3x+2(100-x)=300............................x=100
4x-3(20-x)=6x-7(11-x)......................x=17/6

收起