Question

It is known that X + Y is equal to 10 and that x is equal to Z show that Z + Y is equal to 10 solve the question

Answer 1

This is very easy question.

Answer 2

First conditions: x+y=10

x=z ..(1)

second conditions : z+y=10 ... (2)

substitute x in eqn (2) we get,

x+y=10 (3)

x+y=10 from first condition

x+y=10

y=5

x=5