Answer:
one solution
Step-by-step explanation:
X-9=0
Add 9 to each side
X-9+9=0+9
x = 9
There is one solution
Answer: C
Step-by-step explanation: I took the quiz and they said it was correct
Answer:
6x-3y
Step-by-step explanation:
3 * 2x = 6x
3 * - y = 3y
So 6x - 3y
Answer:
13
Step-by-step explanation:
15 - 4 + 7 - 5 = 13
Simply expand the brackets and subtract and add accordingly.