Question

13x y ( xy- y)
with explanation​

Answer 1

Answer:

x + y = 13 and y- x = 1.

Adding the two equations we get

x + y + y -x = 13 + 1

Or 2y = 14.

Or y = 14/2 = 7.

Now x× y = 42.

Or x = 42/y = 42/7 = 6.

Therefore y = 7 and x = 6.