Respuesta :
Answer: Grandfather = 62
Grandmother = 59
Step-by-step explanation:
1) Organize information.
- m + 3 = f
- f + m = 121
- m + (m + 3) = 121
2) Simplify.
- 2m + 3 = 121
- -3 -3
- 2m = 118
- ÷2 ÷2
- m = 59
3) Insert value of m into m + 3 = f.
- 59 + 3 = f
- 59 + 3 = 62
4) Check work.
- 59 + 62 = 121?
- Yes