Answer:
The answer is 54.
Step-by-step explanation:
Ok buddy
‣Remember that a right angle equals 90 degrees.
‣The numbers lie on a right angle.
‣So watchya gonna do is combine the like terms.

‣In an equation, that finna look like:

‣Solve that equation

‣Therefore, the value of x is 18.
‣We trynna find 3x so plug it.

‣That fr is the answer, 54.