**In this module you can study how to substitute given values into a formula.**

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The most common error made when substituting values into a formula is made when negative signs are dropped.

You must use Order of Operations rules when evaluating formulas.

**Study and practice**

- Systems of equations with substitutionWalk through examples of solving systems of equations with substitution.

Use these search terms to find additional resources:

*evaluate formulasubstitution into formula*