Question

2. It is known that x + y = 10 and that x = z. Show that z + y = 107​

Answer 1

Answer:

Here z has been added to two quantities that are equal.

So, by Euclid's second axiom, which states that, If equals are added to equals then wholes are equal,

⇒x+y+z=10+z

Hence, x+y+z=10+z is true by the second axiom of Euclid.

Answer 2

Hope this helps you buddy...!!