Respuesta :

Answer:

x = 31; AB = 74

Step-by-step explanation:

if ABC = JKL then AB = JK

2x + 12 = 4x - 50

2x + 12 - 4x + 50 = 0

- 2x = - 62

x = 31

AB = 2 * 31 + 12 = 62 + 12 = 74

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