🔹 1. What is an Equation?
👉 Example:
An equation is a mathematical statement that shows two expressions are equal.
🔹 2. What is a Variable?
2x + 3 = 7
👉 Example:
A variable is a symbol (like x, y) that represents an unknown value.
🔹 3. Solving Linear Equation
x + 5 = 10 → yahan x unknown hai
👉 Example 1:
Equation ko solve karne ka matlab hai x ki value find karna
x + 5 = 10
✔️
x = 10 - 5
👉
x=5
Example 2:
2x = 8
✔️
x=8÷2
👉
x=4
Example 3:
2x + 3 = 11
2x = 11 - 3
2x = 8
✔️
x=8÷2
🔹
x=4
✔️
4. Rules to Solve Equations
✔️
Same number dono side add/subtract karo
✔️
Multiply/divide dono side same karo
🔹
Equation balance rehni chahiye
5. Practice Questions
x + 7 = 12
3x = 15
2x + 5 = 13
🔹
x-4=6
Answers:
x=5
x=5
x=4
x = 10
👉 Example:
An equation is a mathematical statement that shows two expressions are equal.
🔹 2. What is a Variable?
2x + 3 = 7
👉 Example:
A variable is a symbol (like x, y) that represents an unknown value.
🔹 3. Solving Linear Equation
x + 5 = 10 → yahan x unknown hai
👉 Example 1:
Equation ko solve karne ka matlab hai x ki value find karna
x + 5 = 10
✔️
x = 10 - 5
👉
x=5
Example 2:
2x = 8
✔️
x=8÷2
👉
x=4
Example 3:
2x + 3 = 11
2x = 11 - 3
2x = 8
✔️
x=8÷2
🔹
x=4
✔️
4. Rules to Solve Equations
✔️
Same number dono side add/subtract karo
✔️
Multiply/divide dono side same karo
🔹
Equation balance rehni chahiye
5. Practice Questions
x + 7 = 12
3x = 15
2x + 5 = 13
🔹
x-4=6
Answers:
x=5
x=5
x=4
x = 10
