Answer:
[tex]x=4[/tex]
Step-by-step explanation:
we know that
In a rectangle the two diagonals are congruent (same length), and each diagonal bisects the other.
so
In this problem
[tex](2x-1)=(x+3)[/tex]
solve for x
[tex](2x-x)=(3+1)[/tex]
[tex]x=4[/tex]
