Answer:
x = 9
Explanation:
STEP 1: Find the dilation of RQ to VT
Dilation = 9:12
= 3:4 or 3/4
STEP 2: Apply that dilation to PR to UV
Expression: x-3:18
(x-3 has to equal 3/4 of 18)
18/3 = 6
x-3 = 6
x = 9
This is your final answer.
Hope this helped ^^
(Please inform me of any mistakes! -- i havent done this for some time hehe)