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10 cards from this deck
System of equations solved together to find unknown variables
n independent equations
Substitution, elimination, graphical
Express one variable in terms of another and substitute
Make coefficients equal and eliminate one variable
Plot both equations and find intersection points
When one equation is easily rearranged (esp. linear)
When coefficients can be easily matched
Always check solutions by substituting into both equations
Geometric relationship between equations and intersections
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