Question

1. Calculate the values below when a = 5, b = 3 and c = 9:

Answers:
1. 3a + b = _______
2. 4a + 2b = _______
3. 5a + 3b – c = _______

Answer 1

1. 18

2. 26

3. 25

1. 3×5+3= 18

2. 4×5+2×3= 26

3. 5×5+3×3-9= 25

When a number and letter are next to each other mean multiply (Example)

5a = 5×a