Answer:
AB = JK = 49
Step-by-step explanation:
Since the triangles are congruent,
AB = JK
14x+7 = 5x+34
Subtract 5x from each side
14x-5x +7 = 5x-5x+34
9x +7 = 34
Subtract 7 from each side
9x+7-7 = 34-7
9x = 27
Divide by 9
9x/9 = 27/9
x =3
But we want to know AB
AB = 14x+7
AB = 14*3 +7
= 42+7
= 49
AB = JK = 49
