Solve each of the following question using appropriate Euclid’s axiom: It is known that x + y = 10 and that x = z. Show that z + y = 10?
Euclid’s axiom According to Euclid’s axiom, if equals are added to equals, the wholes are equal.
To prove: z + y = 10
In this question given that x + y = 10, x = z.
Hence add y to both sides in x = z.
x + y = z + y
z + y = 10 ( x + y = 10)
Hence proved