Question

Simplify 9a + b + a + 2b

Answer 1

first you have to combine your like terms both 9a and a are like terms add them an you get 10a. Secondly combine your oyher like terms b and 2b add them and you get 3b so. 10a + 3b

Answer 2

9a+b+a+2b
Put the a together and the b together.
10a+3b
And there's your answer