Which equation shows the substitution method being used to solve the system of linear equations?

x – y = 7
x = y + 3

a.
(y + 3) – y = 7

b.
x = (7 – x) + 3

c.
x – (y + 3) = 7

d.
x – y = y + 3

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

a precentage of 6th graders. the population is all 6th graders. let me know if i'm wrong, i hope this ! : )

step-by-step explanation:

(x) - (y) = (1 + 4i)

a natural event such as a flood, earthquake, or hurricane that causes great damage or loss of life.

step-by-step explanation: