What is the solution to the equations 2x+5y=20, 6x-5y=12

x = 4, y = 12/5

Step-by-step explanation:

2x+5y = 20

6x-5y = 12

(+)

8x = 32 => x = 32/8 => x = 4

2·4+5y = 20 => 8+5y = 20 => 5y = 12 => y = 12/5

1. 3.4/4

2. 0.8/7

3. 0.5 x 3

4. 0.9 x 6

5. 10.8

6. 2.35

7. 0.567

8. 9.35

9. 0.02

10. 0.06

11. 0.16

12. 0.42

13. 0.63

14. 5.6

15. 8.1

16. 9.9

17. 0.28

18. 0.48

19. 0.27

20. 0.49

21. 0.45

22. 0.72

23. 0.9

24. 0.88

25. 0.75

26. 0.16

27. 0.328

28. 0.495

29. 0.72

30. 1.068