Question

Substitution Property of Equality: If y = 20, then x + y = _

Answer 1

Explanation:

Concept:

Substitution Property. For all real numbers x and y , if x=y , then y can be substituted for x in any expression.

Given that:

X=20, then

$x+y=$

By susbtituting the value of x=20, we will have it below as

$x+y=x+20$

Hence,

The final answer is

$x+20$