ABCD is a parallelogram. Find x and y using the following information:

Question

AB = 5x - 2y
DC = 4
AD = y
BC = 5 - x

Answer 1

In a ||gram , opposite sides are equal, so
5x-2y = 4 and 5-x = y

Solve as a pair of equations in two unknowns
(I would use substitution, subbing the second into the first)