Solving Systems of Equations by Substitution
9th Grade · Math · 45 min· Big Ideas Math
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Learning Objective
I can solve a system of equations using substitution.
- 1
The substitution method involves solving for one variable in one equation and substituting that expression into the other equation.
- 2
When using substitution, the goal is to create a single equation with one unknown variable that can be solved.
- 3
After finding the value of one variable, substitute it back into either of the original equations to solve for the remaining variable.
