Question

Someone help me with #12

Answer 1

x = 6

Explanation:

If PQ = 3x + 14, QR = 7x - 10, and Q is the midpoint of PR, then PQ = QR.

`PQ = 3x + 14 = QR = 7x - 10\\3x + 14 = 7x - 10\\3x + 24 = 7x\\24 = 4x\\6 = x\\x = 6`

Answer 2

12.

`x = (PQ-14)/(3)` and
`x = (QR + 10)/(7)`

Explanation:

Hope this helps!

Have a nice day! :-)