Respuesta :

mewtoreks

Answer:

4

Step-by-step explanation:

im assuming x is the top side of the trapezium because there is no picture provided.

the formula for area of trapezium is:

height x (base + (difference of the base and the topside/2))

so we would do the inverse of this:

22/4 = 5.5

7-5.5 = 1.5

1.5x2 = 3

7-3 = 4

x = 4