Given three numbers a, b, c with a = b. A student adds c to a and adds c to b, claiming a + c = b + c. This is valid by which axiom, and it is a general (non-geometry) principle called a:

Question

Accepted Answer

Common notion; if equals are added to equals, the wholes are equal. Adding equal amounts (c) to equals (a and b) keeps them equal. As it applies to all magnitudes, it is a common notion (axiom), not a geometry-only postulate.

Given three numbers a, b, c with a = b. A student adds c to a and adds c to b, claiming a + c = b + c.
This is valid by which axiom, and it is a general (non-geometry) principle called a:

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More Class 9 Euclid's Postulates practice

Given three numbers a, b, c with a = b. A student adds c to a and adds c to b, claiming a + c = b + c.This is valid by which axiom, and it is a general (non-geometry) principle called a:

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 9 Euclid's Postulates practice

Given three numbers a, b, c with a = b. A student adds c to a and adds c to b, claiming a + c = b + c.
This is valid by which axiom, and it is a general (non-geometry) principle called a: