Answer:
16 - 5 
Step-by-step explanation:
negative multiplied by positives = negative numbers
3 x 5 = -15
negative multiplied by a negative = a positive number
-3 x -2y = +6y
so combine both gets -15 +6y
or a better way to write it is 6y-15
Vertical angles are equal
4x = 45 + 15
4x = 60
x = 60/4
x = 15
To solve the equation:

Therefore, the answer is u=19.
Hope it helps!