Respuesta :

texaschic101
ab + bc = ac
3x + 4 + x + 3 = 5x + 2
4x + 7 = 5x + 2
7 - 2 = 5x - 4x
5 = x <==

ab = 3x + 3....3(5) + 4 ....15 + 4 = 19
bc = x + 3 ...5 + 3 = 8
ac = 5x + 2....5(5) + 2.....25 + 2 = 27
Answer = 27

Hope this helps :)