writing and solving one-step equations

Kayla is making pancakes for breakfast for her entire family on Christmas. She has added in 4 cups of flour before running out. Write an algebraic equation to determine how many more cups of flour she needs.

• $4-x=6$

• $4x=6$

• $\frac{x}{4}=6$

• $x+4=6$

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CCSS.HSA.CED.A.3

Joseph bought a used iPhone, then sold it for triple what he purchased it for. Write an equation to determine what he paid for the phone if he sold it for $180.

• $180-x=60$

• $\frac{x}{3}=180$

• $x+60=180$

• $3x=180$

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CCSS.HSA.CED.A.3

2. Cheryl gets paid $8 per hour for her job at the record store.  She made a total of $96 last week.  Which equation models this situation?

• 96h = 8
• h/96 = 8
• 8h = 96
• h/8 = 96

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CCSS.HSA.CED.A.3

1. Ted bought a dolphin poster for $12.  He now has $5.  Which choice models this situation?

• m - 12 = 5
• m - 5 = 12
• m + 5 = 12
• m + 12 = 5

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CCSS.HSA.CED.A.3

5.  After dropping 5ºF, the temperature was 37ºF.  Which choice models this situation?

• d - 37 = 5
• d + 5 = 37
• d - 5 = 37
• d + 37 = 5

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CCSS.HSA.CED.A.3

Choose the correct equation for the situation.
Jane is 3 years older than Sam. If Jane 12, how old is Sam?

• j - 3 = 12
• s - 3 = 12
• s + 3 = 12
• j + 12 = 3

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CCSS.HSA.CED.A.3

Last Friday Stefan had $35. Over the weekend, his parents gave him some money for washing the car and now he has $47. Write an equation to determine how much his parents paid him for washing the car.

• $35-x=47$

• $\frac{x}{35}=47$

• $35+x=47$

• $35x=47$

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CCSS.HSA.CED.A.3