Solving systems of linear equations — Basic example | Math | SAT | Khan Academy
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Solving systems of linear equations — Basic example | Math | SAT | Khan Academy
Watch Sal solve a system of linear equations using both substitution and elimination. View more lessons or practice this subject at https://www.khanacademy.org/sat. Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and ...
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