Quadrilateral abcd is a parallelogram with ab = 3y – 6, bc = 5x – 8, cd = 2y + 4, and ad = 4x –1. find x.

a.
7
b.
14
c.
27
d.
28

Choice A. Work done below:
4x-1=5x-8 ( Set the opposite sides equal to each other).
4x-5x-1=-8 (Subtract 5x on both sides)
-x-1=-8 (Combine like terms)
-x=-8+1( Add 1 on both sides)
-x=-7 (Now since you have a negative sign on both sides you can cancel them)
x=7 ( Making that as your answer!!)

You're doing something i dont know how to do but search up on google slope calculator maybe that will get you there

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