Answer:
x = 6
Step-by-step explanation:
6 - 2x = (5-9)x +18
6 - 2x = -4x +18
2x = 12
x = 6
-40, -41, -42, -43, -44,-45, -46
The price was marked down. If the price was reduced, we have to sum with the other value to find the original price:

The original price was $105.
You would write it out like this: 12/20. But yeah, it can be simplified by dividing 4 for 12 and 20. So it would be: 3/5. So 3/5 is the simplest form.