Question

If AB = x + 4, BC = 2x - 10, and AC = 2x + 1, then find the value for BC.

11
7
4
15
None of the other answers are correct

Answer 1

4

Explanation:

AB + BC = AC

(x + 4) + (2x - 10) = 2x + 1

x + 4 + 2x - 10 = 2x + 1

x - 6 = 1

x = 7

BC = 2(7) - 10 = 4