Question

F is between C and B. If CF = 7x+4, FB = 10x -69, and CB = 12x -25. Find x and CF​

Answer 1

• x = 8
• CF = 60

Explanation:

CF + FB = CB

(7x+4) +(10x-69) = (12x-25)

5x = 40 . . . . . . . . add 65-12x

x = 8 . . . . . . . . . . divide by 5

CF = 7x +4 = 7(8) +4 . . . . use the x value in the expression for CF

CF = 60