This lesson first justifies the reason WHY we are allowed to multiply or divide an inequality by a positive number without the inequality sign changing, and then secondly we solve a variety of simple linear inequalities. It is meant for pre-algebra students. I don't deal with the situation where the number we multiply or divide by is negative, because this lesson matches Math Mammoth Grade 7 curriculum, where that topic is not covered.
Tagged under: pre-algebra,grade 7,math mammoth,math,inequality
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