ABCD is a trapezium. Since line AB and CD do not vary in y, they are parallel. Lines AD and BC are not parallel, as AD increases in x, and BC decreases in x. A quadrilateral with only one set of parallel lines is a trapezium
Answer:
z=-5
Step-by-step explanation:
-4z=20
divide both sides of the equation by -4
-4z/-4=20/-4
X=17, Y=5