Answer:
I got negative 7 if that helps.
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given expression:

To solve for 
Solution:
Using distribution:


Adding
to both sides.


Subtracting 18 from both sides.


Multiplying each term with 3 to remove fractions.



Dividing both sides by 9.

∴
(Answer)