Question

In parallelogram ABCD AB is 5x+2 and DC is 8x -7 How do I find x?​

Answer 1

3

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.

Answer 2

x=3

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