how do you solve something like this?
![how do you solve something like this class=](https://us-static.z-dn.net/files/d96/4ac98a8830e556340309400e64cfa8c8.png)
Answer:
-24
Step-by-step explanation:
First, use the equation find the value of x. Then, substitutes the value of x into 9x+12.