Question

x+y+z=35 ,y+z =25,z=?

Answer 1

We have only two equations.

x+y+z=35 --- (Equation 1)

y+z=25 --- (Equation 2)

If we subtract both sides

(1) - (2)

x=10

But we are not able to find other solutions.

If we put x=10 into other equation, (1) and (2) is same.

And we can find there are infinite solutions of y, z.

y=(any number)

z=(any number)