The correct answer is 2 found by my calculator.
Answer:
7 - 2 / x = 4 + 10 / x
or , 7 - 4 = 10 / x + 2 / x
or , 3 = 12 / x
or , x = 12 / 3
Therefore , x = 4
The green triangle is the rotated image PQR. Point of rotation is (1,-1).
The red triangle is the reflected image XYZ. It’s reflected on the x axis