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# Checking Solutions to Equations

## Substitute values for variables to check equation solutions

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Practice Checking Solutions to Equations
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Evaluating Algebraic Expressions and Equations

### Vocabulary Language: English

Equation

Equation

An equation is a mathematical sentence that describes two equal quantities. Equations contain equals signs.
Expression

Expression

An expression is a mathematical phrase containing variables, operations and/or numbers. Expressions do not include comparative operators such as equal signs or inequality symbols.
inequality

inequality

An inequality is a mathematical statement that relates expressions that are not necessarily equal by using an inequality symbol. The inequality symbols are $<$, $>$, $\le$, $\ge$ and $\ne$.
solution

solution

A solution to an equation or inequality should result in a true statement when substituted for the variable in the equation or inequality.
Variable

Variable

A variable is a symbol used to represent an unknown or changing quantity. The most common variables are a, b, x, y, m, and n.