Question

How do you combine like terms in `\frac { 1} { 3} ( 9a + b ) - \frac { 1} { 2} ( 4a + 2b )`?

Answer 1

`1a - 2/3 b`

Explanation:

`(9a)/3 + b/3 - (4a)/2 - (2b)/2`

`= 3a - 2a + 1/3 b - 3/3 b`