Ok so first you move them together so:
9x-3x=-36
6x=-36
x=

Then divide to get: -
6
Your answer would be
A
Answer: B) 1 and -3
Step-by-step explanation:
On a Quadrant Plane:
Q1: (+,+)
Q2: (-,+)
Q3: (-,-)
Q4: (+,-)
Answer:
-720
Step-by-step explanation:
The answer is 30 because you put 21/x= 70/100
you cross multiply 100 and 21 you get 2100 and you divide it by 70 you should get 30 cause you take out one 0 from both numbers and end up with 210 divided by 7 then you get 30