Open Up - Grade 8 - Mathematics - Unit 4 - Lesson 5

Solve each of these equations.2(x+5)=3x+1

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8.EE.7.a

8.EE.7.b

Solve each of these equations.3y-4=6-2y

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8.EE.7.a

8.EE.7.b

Solve each of these equations.3(n+2)=9(6-n)

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8.EE.7.a

8.EE.7.b

Clare was solving an equation, but when she checked her answer she saw her solution was incorrect. She knows she made a mistake, but she can’t find it. Where is Clare's mistake and what is the solution to the equation?

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8.EE.7.a

8.EE.7.b

Solve each equation, and check your solution.\frac{1}{9}(2m-16)=\frac{1}{3}(2m+4)

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8.EE.7.a

8.EE.7.b

Solve each equation, and check your solution.-4(r+2)=4(2-2r)

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8.EE.7.a

8.EE.7.b

Solve each equation, and check your solution.12(5+2y)=4y-(6-9y)

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8.EE.7.a

8.EE.7.b

A participant in a 21-mile walkathon walks at a steady rate of 3 miles per hour. He thinks, “The relationship between the number of miles left to walk and the number of hours I already walked can be represented by a line with slope .” Do you agree with his claim?

• Yes, I agree with the claim.
• No, I do not agree with the claim.

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8.EE.7.a

8.EE.7.b