Answer:
13
Step-by-step explanation:
Remark
This only works if B is between AC and F is between AE
Givens
CE = 32
BF = 1/2 CE Properties of midpoints. BF is parallel to and 1/2 of CE
BF = 1/2 * 32
BF = 16
Equation
2x - 10 = 16 Add 10 to both sides
2x - 10 + 10 = 16 + 10 Combine
2x = 26 Divide by 2
2x/2 = 26/2 Do the division
x = 13
