Answer:
x = 16
Explanation:
I could be wrong so sorry in advance lol but this is what I did:
I made the equation 3x + 3 = ((7x-10)/2)
I divided the 2nd equation by 2 so that it would be the same length as RZ.
after that, I got: 3x + 3 = 3.5x - 5
from there, i did basic algebra to get the answer 16
hope this helps!