Question

Solve the following pairs of equations for x and y : 15/x-y+22/x+y = 5 , 40/x-y + 55/x+y=13; x is not equal to y and x is also not equal to -y

Answer 1

letx-y =1/a
and x+y=1/b put it on given equation and solve it

Answer 2

Answer:

hello

can we be a friends?