Question

Write in expanded form then simplify:

1. 5 (a + 2b) - 3a

2. 4 (n - 2c) + n

Answer 1

Answer: 1. 2a + 10b

2. 5n - 8c

Step-by-step explanation:

1. 5(a + 2b) -> multiply each term in the bracket by 5. this will give 5a + 10b. then add the -3a to give 2a + 10b

2. 4(n-2c) -> multiply each term in the bracket by 4. this will give 4n - 8c. then add the n to give 5n - 8c