Since the problem states "a number" and again "a number", I assume it;'s the same number. Let the number be x.
12x - 9x = 3x
The difference of twelve times a number and nine times a number is three times the number.
Answer:
x= -3
Step-by-step explanation:
Look at the screenshot, it explains how I got the answer.
Yes that is correct good job
Quadrant 2 is the only one that can satisfy the condition. In there, x<0 and y>0