Example 3: Solving systems by substitution

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Khan Academy
January 10, 2014
556
06:03

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Solving systems by substitution 3
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Solving systems with substitution
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U06_L1_T2_we3 Solving systems by substitution CC_8_EE_8_a CC_8_EE_8_b CC_8_EE_8_c CC_39336_A-REI_6
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