Unit 4 Day 1 Graphing Systems of Equations and Inequalities: https://youtu.be/fSQC0tbk7ao
Unit 4 Day 2 Elimination Methods +/-/*: https://youtu.be/xNFxQxRzng8
Unit 4 Day 3 Substitution Method: https://youtu.be/DjV_O6mCW0Y
Unit 4 Day 4 Applications of System of Equations: https://youtu.be/Z2nZWC_E774
