Solving Systems of Equations with Substitution
9th Grade · Math · 41 min
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Learning Objective
I can solve systems of linear equations using substitution.
- 1
The substitution method is an algebraic technique for solving systems of equations that provides an exact answer.
- 2
To use the substitution method, first solve one equation for one variable, then substitute that expression into the other equation.
- 3
After solving for one variable, substitute its value back into an equation to find the other variable, which gives you an (x, y) pair that satisfies both equations.
