Question

For which value of x is the figure a rhombus?

A. x = 6
B. x = 7.5
C. x = 12
D. x = 18.75

Answer 1

The answer is x=12!

Hope this helped

Explanation:

Answer 2

First keep in mind these two angles are equal to each other resulting in the equation needed to solve the answer has a = in it!

2x+39=6x-9

First subtract 2x from both sides ( 2x-2x and 6x-2x)

39=4x-9

Now add 9 to both sides (-9+9 and 39+9)

48=4x

Now divide both sides by four (4x/4 and 48/4)

x=12