Question

Solve the following systems of equations:
10/(x+y) + 2/(x-y) =4
15/(x+y) - 5/(x-y) =-2

Answer 1

Using cross-multiplication method, we obtain:

Adding equation (3) and (4), we obtain:

2x =6

x =3

Substituting the value of x in equation (3), we obtain:

y =2

x =3, y=2