If the polygons are similar, then the top side is equal to one half of the left side.
Since side (x -1) = 8, then x = 9.
Answer: 4.3
Step-by-step explanation:
11x2=22
22/3= 7.3
7.3-3= 4.3
7(2x - 3) = 1...distribute through the parenthesis
14x - 21 = 1.....step 1
14x = 22...step 2
x = 22/14 = 11/7 or 1 4/7