Implify, using the distributive property and then combining like terms.

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

9a+7b

Step-by-step explanation:

1. 15a+5b-6a+2b

2. 9a+7b

To simply using the distributive property you have to multiply the number outside the parentheses () with the numbers inside the parentheses (like in step 1).

To combine like terms you have to add the numbers with the same variable together (like in step 2).