Respuesta :

wegnerkolmp2741o

Answer:

x=3

Step-by-step explanation:

In a parallelogram, AB has to be equal to DC

5x+2 = 8x-7

Subtract 5x from each side

5x-5x+2 = 8x-5x-7

2 = 3x-7

Add 7 to each side

2+7 = 3x -7+7

9 =3x

9/3 = 3x/3

3 =x

altavistard

Answer:

3

Step-by-step explanation:

Because this is a parallelogram, AB and CD have the same lengths.  Therefore, 5x + 2 = 8x - 7.

Simplifying, we get 9 = 3x, so that x = 3.