Simplify 9a + b + a + 2b
9a+b+a+2bPut the a together and the b together.10a+3bAnd there's your answer
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