Solving two step equations and inequalities

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What is a two-step equation?

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CCSS.7.EE.B.4A

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How do you isolate a variable in a two-step equation?

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CCSS.7.EE.B.4A

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What does it mean to solve an inequality?

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CCSS.7.EE.B.4B

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What is the difference between an equation and an inequality?

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An equation states that two expressions are equal, while an inequality shows that one expression is greater than, less than, or not equal to another.

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How do you graph a solution to an inequality on a number line?

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To graph an inequality, use an open circle for < or > and a closed circle for ≤ or ≥. Shade the region that satisfies the inequality.

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CCSS.6.EE.B.8

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CCSS.7.EE.B.4B

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How do you translate a word problem into an inequality?

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Identify keywords: 'no more than' translates to ≤, 'at least' translates to ≥, 'more than' translates to >, and 'less than' translates to <.

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CCSS.6.EE.B.8

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CCSS.7.EE.B.4B

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CCSS.6.EE.B.8

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It represents that Tom can spend 20 dollars or less on his mom's birthday present.

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CCSS.6.EE.B.8