Answer:
[tex]SV=5\ units[/tex]
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
In a parallelogram opposites sides are parallel and congruent
so
In this problem
[tex]SV=TU[/tex] ---> by opposite sides
substitute the given values
[tex]x+3=4x-3[/tex]
solve for x
[tex]4x-x=3+3\\3x=6\\x=2[/tex]
Find the length of SV
[tex]SV=x+3[/tex]
substitute the value of x
[tex]SV=2+3=5\ units[/tex]
