Question

Abcd is a rectangle with da=14 cm and ab=30 and de= x+y and be = x-y find x

Answer 1

Hii There!!

Since, we know that opposite sides of the rectangle are equal. 
AB=CD
BC=AD
x+u=30. -----1)
x-y=14. -----. 2)

Adding 1 and 2
2x=44
x=22

Putting x=22 in equation 1)
y=8.

Hope it Helps..
Mark as Brainliest