# Solving equations by substitution

Are you struggling with Solving equations by substitution? In this post, we will show you how to do it step-by-step. Our website can solve math word problems.

## Solve equations by substitution

There are a lot of great apps out there to help students with their school work for Solving equations by substitution. There are a few different ways to solve a 3x3 system of equations. One way is to use substitution. This involves solving for one variable in one equation and substituting that variable into the other equations. Another way is to use elimination. This involves adding or subtracting equations to eliminate one variable at a time. Once all variables are eliminated, the remaining equation will have only one variable and can be solved.

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