Solving systems of equations with substitution (K-A)

S#	Lecture	Course	Institute	Discipline
1	Systems of equations with elimination: King's cupcakes (K-A)	Solving systems of equations with substitution (K-A)	Khan Academy	Basic and Health Sciences
2	Systems of equations with elimination: x-4y=-18 & -x+3y=11 (K-A)	Solving systems of equations with substitution (K-A)	Khan Academy	Basic and Health Sciences
3	Why can we subtract one equation from the other in a system of equations? (K-A)	Solving systems of equations with substitution (K-A)	Khan Academy	Basic and Health Sciences

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