IM Grade 8 Unit 4: Lesson 1-8

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x = 1

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Identify the mistake in the following steps: Step 1: ... Step 2: ... Step 3: ...

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Mistake was made in Step 2.

Tags

CCSS.HSA.REI.A.1

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x = \frac{1}{3}

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x = 2

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CCSS.8.EE.C.7B

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What equation represents this hanger diagram? Options: 3w + 2 = 3, 3y + 2 = 3, 3x + 2 = 3, 3q + 2 = 3

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3x + 2 = 3

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CCSS.HSA.CED.A.3

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What does it mean if an equation has no solution?

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It means there are no values for the variable that satisfy the equation.

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CCSS.8.EE.C.7A

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What does it mean if an equation has infinitely many solutions?

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It means any value for the variable satisfies the equation.

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CCSS.8.EE.C.7A

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Subtract 3 from both sides to isolate the term with x.

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CCSS.7.EE.B.4A

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How do you check if your solution to an equation is correct?

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Substitute the solution back into the original equation to see if both sides are equal.

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CCSS.6.EE.B.5

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What is the distributive property?

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a(b + c) = ab + ac.

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CCSS.6.EE.A.3