Title: Basic Algebra Notes class 8
Content:
Algebra is a branch of mathematics in which letters and symbols are used to represent
numbers. These letters are called variables such as x, y, and z.
1. Variable:
A symbol used to represent an unknown value. Example: x, y
2. Constant:
A fixed value. Example: 2, 5, 10
3. Expression:
Combination of variables and numbers. Example: 2x + 3
4. Equation:
A statement that shows equality. Example: 2x + 3 = 7
Solving Example:
2x + 3 = 7
2x = 7 - 3
2x = 4
x=2
Algebra helps us solve real-life problems and is very important in mathematics.
Practice Question:
Solve: 3x + 5 = 11
Content:
Algebra is a branch of mathematics in which letters and symbols are used to represent
numbers. These letters are called variables such as x, y, and z.
1. Variable:
A symbol used to represent an unknown value. Example: x, y
2. Constant:
A fixed value. Example: 2, 5, 10
3. Expression:
Combination of variables and numbers. Example: 2x + 3
4. Equation:
A statement that shows equality. Example: 2x + 3 = 7
Solving Example:
2x + 3 = 7
2x = 7 - 3
2x = 4
x=2
Algebra helps us solve real-life problems and is very important in mathematics.
Practice Question:
Solve: 3x + 5 = 11
