Answer:
[tex]x=5[/tex]
Step-by-step explanation:
we know that
In a parallelogram opposite sides are parallel and congruent
In this problem
AB and CD are opposite sides
so
AB=CD
substitute the given values
[tex]6x-10=3x+5[/tex]
solve for x
[tex]6x-3x=10+5[/tex]
[tex]3x=15[/tex]
[tex]x=5[/tex]
