Equation Mats

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CCSS.6.EE.B.7

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CCSS.7.EE.B.4A

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CCSS.6.EE.B.7

• 10 = 6 + x

• 9 = 2x + 3

• 3x = 9

• 2x + 4 = 10

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CCSS.HSA.CED.A.3

The amounts that two plumbers charge for their services are described.

* The first plumber charges a fixed fee of $40 for the house calls and $15 per hour of work.

*The second plumber charges a fixed fee of $30 for house calls and $19 per hour of work.

For what number of hours of work do the first plumber and the second plumber charges the same total amount?

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CCSS.8.EE.C.8C

• 10 = 6 + x

• 9 = 2x + 3

• 3x = 10

• 2x + 4 = 10

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CCSS.HSA.CED.A.3

• 10 = 6 + x

• 10 = 2x + 3

• 3x = 9

• 2x + 4 = 10

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CCSS.HSA.CED.A.3

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CCSS.7.EE.B.4A

• 10 = 6 + x

• 9 = 2x + 3

• 3x = 9

• 2x + 4 = 10

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CCSS.HSA.CED.A.3

Which situation could r + 7 = 23 represent?

• Joan had some dolls. She bought 7 dolls more for a total of 23. How many dolls did she have to start?

• Joan had 23 more dolls than Jill. Jill had 7 dolls. How many dolls does Joan have?

• Joan had 23 dolls. Jill gave her 7 more dolls. How many dolls does Joan have now?

• Joan had 23 dolls. She separated them into 7 equal piles. How many dolls are in each pile?

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CCSS.2.OA.A.1