Question

BC = 4x+2, AB= 3x+3 and AC = 26. Find measure of BC. A B C

Answer 1

Looking at the diagram,

AB + BC = AC

3x + 3 + 4x + 2 = 26

3x + 4x + 3 + 2 = 26

7x + 5 = 26

7x = 26 - 5

7x = 21

x = 21/7

x = 3

BC = 4x + 2 = 4 * 3 + 2

BC = 12 + 2

BC = 14