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Example 2: Solving systems by substitution
Solving systems by substitution 2
Khan Academy
Solving systems with substitution
1016
04:05
Example 3: Solving systems by substitution
Solving systems by substitution 3
Khan Academy
Solving systems with substitution
1173
06:03
Substitution Method 3
Substitution Method 3
Khan Academy
Solving systems with substitution
1009
05:57
Practice using substitution for systems
Example doing Khan Academy systems of equations exercise at: http://www.khanacademy.org/math/algebra/systems-of-eq-and-ineq/e/systems_of_equations_with_substitution
Khan Academy
Solving systems with substitution
1078
04:20
Example 1: Solving systems by elimination
Solving systems by elimination
Example 2: Solving systems by elimination
Solving systems by elimination 2
Example 3: Solving systems by elimination
Solving systems by elimination 3
Simple Elimination Practice
Practice solving systems of equations through simple elimination (exercise at http://www.khanacademy.org/math/algebra/systems-of-eq-and-ineq/e/systems_of_equations_with_elimination_0.5 )
