Question

ABCD is a rhombus fbnc equals 4x - 5 + C + D equals 2 as + 7 find X

Answer 1

We are given the dimensions of a rhombus. Thought it's not said, we'll assume the sides have the same length, so we can find the value of x, since no more conditions are provided

BC=4x-5

CD=2x+7

Since BC=CD

`4x-5=2x+7`

Adding 5

`4x=2x+7+5=2x+12`

subtracting 2x:

`4x-2x=12\Rightarrow\text{ 2x=12}`

Solving:

x=12/2=6

x=6

Option D. x=6