One-Variable Linear Equations

What is the solution to the equations?

• one solution

• no solution

• infinite solutions

• none of these

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• x = 2

• x = -1

• x = 12

• x = 6

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• w = -4

• w = -2

• w = 1

• w = 5

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Solve:
2x + 1 = 2x - 1

• No Solution

• One Solution

• Infinitely Many Solutions

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Kylie and Ricardo decide to start a dog watching business for their neighborhood. Kylie thinks it would be best to charge customers $27 for a membership and then $5 per time they walk a dog. Ricardo thinks it would be best to charge $8 per dog walk. For what number of walks will their two plans cost the same amount of money?

Mathematical Equivalence

ON

1. Kylie and Ricardo decide to start a dog watching business for their neighborhood. 

3. Kylie thinks it would be best to charge customers $27 for a membership and then $5 per time they walk a dog. 

5. Ricardo thinks it would be best to charge $8 per dog walk. 

7. For what number of walks will their two plans cost the same amount of money?

Mathematical Equivalence

ON

The perimeter of the rectangle shown is 36 inches. Solve for the value of x.

Tip: just type in the number.

Mathematical Equivalence

OFF

The perimeter of the rectangle shown is 36 inches. Solve for the value of x.

Tip: just type in the number.

Mathematical Equivalence

OFF

One sixth of the candies in a bag of M&Ms are orange. If there are 15 orange candies how many M&Ms are in the bag?

Which equation matches the scenario?

• x - 1/6 = 15

• -16x = 15

• 1/6 x = 15

• -15 = 16x

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Derrick is 4 years older than his brother. The sum of their ages is 30. How old is Derrick?

• 13

• 17

• 30

• 5

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