Răspuns :
Răspuns:
1. X=7
2. X=24:4=6
3. X=2
4. X- 9=81:9->x=9+9=18
5. 5x=35=>x=7
6. X+13=14=>x=1
7. 2x=4=>x=2
8. 2x-5=1=>2x=6=>x=3
9. 3x-2=5x2=10=>3x=10+2=>x=4
10. 3x+8=14=>x=2
11. 6x=60=>x=10
12. 2x-4=6=>x=5
13.3x+1=25=>x=8
14. 7x=21 x=3
15. x=3
16. 3x+15=30. x=5
17. 10-3x=4. X=2
18. X=5
19. x=2