Question

B is the midpoint of AC. Ac =4x - 2 and AB =7. What is x, B.C. and AC?

Answer 1

sorry it was quite a bit but this is what I got

1) 2(7) = 4x - 2

2) 14 = 4x - 2

3) 16 = 4x

4) x = 4

5) AC = 4(4) - 2

6) don’t know

7)don’t know

Answer 2

Quick version (comment below for further math):

1) 2(7) = 4x - 2
2) 14 = 4x - 2
3) 16 = 4x
4) x = 4

5) AC = 4(4) - 2
6) AC = 16 - 2
7) AC = 14

Because 'B' is the midpoint both AB and BC are half of AC
8) BC = 7