Respuesta :
4x + 9
First, make sure to change your x for (3). Simplify 4 × 3 to get 12. / Your problem should look like: 12 + 9
Second, simplify 12 + 9 to get 21. / Your problem should look like: 21
Answer: 21
First, make sure to change your x for (3). Simplify 4 × 3 to get 12. / Your problem should look like: 12 + 9
Second, simplify 12 + 9 to get 21. / Your problem should look like: 21
Answer: 21