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Linear Equations Introduction

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Linear Equations Introduction

Linear equations with variables and numbers

📚 Part 1: Identifying Equation Components

1. In the equation 5x + 7 = 17, what is the coefficient?

x

5

7

17

2. Which of the following are constants in the equation 3y - 8 = 14? (Check all that apply)

3

y

8

14

3. What is the variable in the equation 2x + 9 = 15?

2

x

9

15

4. Complete the sentence: In a linear equation, the __________ is the unknown value we are solving for.

Answer: ____________________

✏️ Part 2: Solving Linear Equations

5. Solve the equation: 3x = 15

x = _______

6. Solve the equation: 5x + 7 = 17

x = _______

7. Check your answer from question 6 by substituting it back into the original equation. Show your work.
8. A movie theater charges the same price for each ticket. If 4 tickets cost $32, write and solve an equation to find the cost of one ticket.

Equation: ____________________

Cost per ticket: $ _______

🎯 Part 3: Real-World Applications

9. Sarah has some money and earns $15 more babysitting. She now has $35 total. How much money did she start with?

Write an equation using x for the starting amount: ____________________

Sarah started with: $ _______

10. Explain in your own words what it means to "solve" a linear equation.

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