Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
The substitution method is an approach used to solve systems of equations by replacing one variable with an expression involving another variable. This allows us to simplify the system and find solutions for both variables.
Related terms
Elimination method: A technique for solving systems of equations by adding or subtracting equations to eliminate one variable.
Cramer's Rule: A method for solving systems of linear equations using determinants.
Consistent system: A system of equations that has at least one solution.