This document contains 30 equations involving addition, subtraction, and variables. The equations are of the form of a single variable (x or y) equal to an expression involving addition, subtraction and numbers. The goal is to solve for the unknown variable.

1. Algebra
Addition and Subtraction
Equations

2. 65.9
31.5 = a - 34.4

3. 15
42 + y = 57

4. 88.58
x + 76.31 = 164.89

5. 96
23+ y = 119

6. 81
x - 32 = 49

7. 10.16
x + 19.98 = 30.14

8. 69.47
44.58 + y =114.05

9. 53
45 + y = 98

10. 69
x + 23 = 92

11. 35
x - 9 = 26

12. 46
36 = a -10

13. 100
36 = a - 64

14. 91
96 + y =187

15. 70
x + 72 =142

16. 72
x - 5 = 67

17. 26
69 + y = 95

18. 2
91+ y = 93

19. 94
x - 75 = 19

20. 62.96
x - 50.79 =12.17

21. 81
x - 32 = 49

22. 28
x + 27 = 55

23. 47
x + 1 = 48

24. 28.14
18.73 = a - 9.41

25. 58
12 = a - 46

26. 100
97 = a - 3

27. 94
12 + y = 106

28. 93
x + 69 =162

29. 81.4
12.2 + y = 93.6

30. 76
x + 41=117

31. 70
39 = a - 40

32. 30.66
x + 82.13 = 112.79

33. 85.52
29.36 + y =114.88

34. 98
7 = a - 91

35. 60.1
x -12.3 = 47.8

36. 53
x + 45 = 98

37. 47
4 = a - 43

38. 100
67 = a - 33

39. 31
x - 14 =17

40. 99
24 + y =123

41. 82.95
x + 34.45 = 117.4

42. 9.43
x + 29.25 = 38.68

43. 56.75
49.2 = a - 7.55

44. 28
77 + y =105

45. 25
70 + y= 95

46. 96
x - 50 = 45