**Answer:**

<em>x = 5</em>

**Step-by-step explanation:**

**If it's a number by itself then that's right cuz **<em>**JNM **</em>**and **<em>**KNL **</em>**is equal, so u do 4x + 6 = 7x - 21. When u do that, u get x = 5.**

**Answer:**

5Lx+17L+2k x + 10k

**Step-by-step explanation:**

**Answer: 45 dollars and it was a distance of 5 kilometers**

**Step-by-step explanation: What i did was start with 30, then keep adding 3 till i got the a multiple of 5.**

**30 + 3 = 33**

**33 + 3 = 36**

**36 + 3 = 39**

**39 + 3 = 42**

**42 + 3 = 45**

**So already i know that it is 5 kilometers, because i added 3 to 30 five times.**

**No i will do that with the second company**

**20 + 5 = 25**

**25 + 5 = 30**

**30 + 5 = 35**

**35 + 5 = 40**

**40 + 5 = 45**

**That is also 5 kilometers, because i added 5 to 20 five times. I also know they are the same price, because they both added to 45 dollars.**

**Thats how i solved it.**

**I really hope that helps!**