Respuesta :

Line BC is equal to line AD

x + 17 = 3x + 7

x - 3x = 7 - 17

-2x = - 10

-2x / -2 = - 10 / -2

x = 5

AD

3x + 7

3(5) + 7

15 + 7

22

CD

2x - 6

2(5) - 6

10 - 6

4

BC

x + 17

5 + 17

22

AB

Line AB is equal to line CD therefore its length is 4

Answer:

x = 5

AB = 4

BC = 22

CD = 4

AD = 22