Question

Find QR. please help I’m so lost on this I’ve done it i don’t know how many times. And got it wrong.

Answer 1

Answer:

Step-by-step explanation:

Using the theorem of the middle in a triangle:

$2x+22=\dfrac{x+20}{2} \\\\4x+44=x+20\ cross\ products\\\\3x=-24\\\\x=-8$