Answer:
i dont get it please alaborate
Step-by-step explanation:
The answer is C that is X=7 and X=-1
multiple x through the given equation to get rid of a fraction. It will be

After that bring 6X to the LHS of the equation
so that it will look like the general equation that is

Use the quadratic formula (or any other approach to find the values of x
You will arrive at

1. 7(2c-5d)-3(d-2c)
2. 14c-35d-3d+6c (DISTRIBUTE)
3. Answer: 20c-38d (PUT TOGETHER LIKE TERMS AND SOLVE)
Answer:
3000 meters
Step-by-step explanation:
1 kilometer = 1000 meters
1 kilometers = every 20 minutes
3× 1000 meters= 20 min ×3
3000 meters = 60 min/ 1 hour