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Kashef

Your super kind Grade 5 math teacher ❀️

Solve One-Step Equations!

Using Variables & Balance

Grade 5 Ontario Math πŸ“š β€’ Algebra

Hello my wonderful Grade 5 superstar! πŸ‘‹

I'm Kashef and today we're learning to Solve One-Step Equations! These are simple equations with a variable (like x) and just one operation. We'll use inverse operations to find the mystery number. It's like solving a fun puzzle! Ready? Let’s balance some equations! πŸš€

🧠 What is a One-Step Equation?

An equation is a math sentence that says two things are equal. It has a variable (x) and we solve to find its value.

x + 5 = 12

πŸ”„ Inverse Operations (The Magic Key)

To solve, do the opposite operation on both sides to keep it balanced!

Addition ↔ Subtraction
Multiplication ↔ Division

✍️ Step-by-Step Examples

Example 1: x + 7 = 15

Subtract 7 from both sides:
x = 15 - 7 = 8

Example 2: x - 4 = 9

Add 4 to both sides:
x = 9 + 4 = 13

Example 3: 6x = 42

Divide both sides by 6:
x = 42 Γ· 6 = 7

🎯 Let’s Solve Some Equations!

1. x + 9 = 16

x = 7

2. x - 5 = 12

x = 17

3. 5x = 35

x = 7

πŸ›’ Real-Life Equation Problems

Problem 1: You have some stickers. After giving 8 to your friend, you have 15 left. How many did you start with? (Let x = starting stickers)

x - 8 = 15 β†’ x = 23

Problem 2: 6 friends share some candies equally and each gets 9. How many candies were there? (Let n = total candies)

6n = 54 β†’ n = 54

πŸ§ͺ Quick One-Step Equations Quiz

Question: x + 12 = 25. What is x?

You are a One-Step Equations Champion! πŸŽ‰πŸ₯³

Kashef is super proud of you! You can now solve simple equations with variables.

Variables and equations are the beginning of real algebra β€” you’re doing amazing!