解方程 9/8-2x=3/4 6x-7/8=1/10 4/9x-1/3x=1 11/12+1/6x=4/3 (2-3/4)x=4/5 4/7x+x=22/49

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/05 04:43:41
解方程 9/8-2x=3/4 6x-7/8=1/10 4/9x-1/3x=1 11/12+1/6x=4/3 (2-3/4)x=4/5 4/7x+x=22/49

解方程 9/8-2x=3/4 6x-7/8=1/10 4/9x-1/3x=1 11/12+1/6x=4/3 (2-3/4)x=4/5 4/7x+x=22/49
解方程 9/8-2x=3/4 6x-7/8=1/10 4/9x-1/3x=1 11/12+1/6x=4/3 (2-3/4)x=4/5 4/7x+x=22/49

解方程 9/8-2x=3/4 6x-7/8=1/10 4/9x-1/3x=1 11/12+1/6x=4/3 (2-3/4)x=4/5 4/7x+x=22/49
9/8-2x=3/4
2x=9/8-6/8
2x=3/8
x=3/16
6x-7/8=1/10
6x=4/40+35/40
6x=39/40
x=13/80
4/9x-1/3x=1
1/9x=1
x=9
11/12+1/6x=4/3
1/6x=16/12-11/12
1/6x=5/12
x=5/2
(2-3/4)x=4/5
5/4x=4/5
x=16/25
4/7x+x=22/49
11/7x=22/49
x=2/7

9/8-2x=3/4 x=3/16
6x-7/8=1/10 x=3/80
4/9x-1/3x=1 x=9
11/12+1/6x=4/3 x=2/5
(2-3/4)x=4/5 x=16/25
4/7x+x=22/49 x=2/7
望采纳

2x=9/8-3/4 2x=3/8 x=3/16
6x=1/10+7/8 6x=39/40 x=13/80
4/9x-3/9x=1 1/9x=1 x=1/9
1/6x=4/3-11/12 1/6x=16/12-11/12 1/6x=5/12 x=2/5
[8/4-3/4]x=4/5 5x/4=4/5 5x=16/5 x=16/25
此题可能有误。应为4x/7+x=22/49 11x=22/7 x=2/7.如按所写,为二次方程,恐怕不是同一层次