alleryTo check whether a number is a solution, you first:
ASubstitute it
BSubtract it
CSimplify it
DSquare it
Answer & Solution
Correct answer: A. Substitute it
1. The claim is about a particular value.
2. That value must be placed into the equation.
3. So you substitute it for the variable.
_Source: OpenStax Elementary Algebra 2e, Chapter 2, Solving Linear Equations and Inequalities._
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