In algebra, the substitution method is one of the ways to solve linear equations in two variables. In this method, we substitute the value of a variable found by one equation in the second equation.

A step by step guide showing how to solve a system of linear equations with the substitution method

Substitution method for solving systems of linear equations with examples, solutions and exercise.

How to solve systems lines (2 variable linear equations) by substitution explained with examples and interactive practice problems worked out step by step.

To use the substitution method, use one equation to find an expression for one of the variables in terms of the other variable. Then substitute that expression in place of that variable in the second equation.

Jan 20, 2020 · Learn the three steps for solving a system of linear equations by the substitution method. Correctly transform systems of two, three or four equations to find the desired coordinate.

Jul 1, 2025 · In this post, I’ll show you how substitution works with a step-by-step example, walk through a common mistake, and even show you what’s happening graphically so it really sticks.

Apr 2, 2025 · Access these online resources for additional instruction and practice with solving systems of equations by substitution. Instructional Video-Solve Linear Systems by Substitution

The substitution method is one of two ways to solve systems of equations without graphing. You might ask yourself, "Why wouldn't I just want to graph the equations to find the solution?"

Substitute means to put in the place of another. In Algebra Substitution means putting numbers where the letters are: