these questions

Question

Find the value of X and BC if B is between C and D

CD=2x, BD=4x , and BD=12x

-------------------------------- separate question

CB= 4x-9 , BD= 3x+5, CD= 17

Answer 1

The first one is entered incorrectly because if B is between C and D, then BD cannot be larger than CD.

For the 2nd example,

CB + BD = CD

so since CB = 4x-9 and BD = 3x+5, and CD = 17, then 4x-9 + 3x+5 = 17.

Keeping variables on the left, we get 7x = 21 so x = 3.

Answer 2

please recheck your numbers.