Answer:
x=6
Explanation:
We know that <AWV is 90, so we can set up an equation. This equation is 54+3x+18=90, we know this is true because the two smaller angles are complementary. Then to find x simply solve the equation.
First, add like terms
3x+72=90
Then, subtract 72 from both sides
3x=18
Finally, divide both sides by 3
x=6