1. 35X-70=0
2. 3/2X-67+2/5=9X
3. 9-90X=100
4. 98-4X=44
5. 4.34=4X-34.66
6. 4/X-8=34
7. 98=30-244X+39/3X
8. 9-9X=0
9. 46.01-3.14=23X+3.1
10. 90-3X=90
11. 10922-1088=39X-4/3+3X
12. 9-3X=2
13. 34%-45=3X
14. (94-4X)/8X=34
15. 31*(9+3X)-98X/5
16. 6=4X
17. 4%*{(5+4X)/(4X-5)}=0
18. 6=54-3X
19. 90/23+3X=10
20. 9+34X=34*8-3X
因为是自己瞎写的,所以也许会有错……
1.2x+5=30
2.5x+6=50
3/2x+3/1x=5
4x+5y=20
x+y=10
1.5x+8=80
50x-68=85
50-2x=24