Mathematics Notes: Basic Algebra
1. What is Algebra?
Algebra is a branch of mathematics that uses variables and numbers to solve problems.
2. Variables
Variables are letters such as x, y, and a that represent unknown values.
3. Solving Equations
Example: x + 4 = 10
Subtract 4 from both sides.
Answer: x = 6
4. Like Terms
3x + 5x = 8x
7a - 2a = 5a
5. BODMAS
Brackets, Orders, Division, Multiplication, Addition, Subtraction.
6. Practice
1. x + 9 = 20
2. 5y = 40
3. 6a + 3a
Answers:
1. 11
2. 8
3. 9a
1. What is Algebra?
Algebra is a branch of mathematics that uses variables and numbers to solve problems.
2. Variables
Variables are letters such as x, y, and a that represent unknown values.
3. Solving Equations
Example: x + 4 = 10
Subtract 4 from both sides.
Answer: x = 6
4. Like Terms
3x + 5x = 8x
7a - 2a = 5a
5. BODMAS
Brackets, Orders, Division, Multiplication, Addition, Subtraction.
6. Practice
1. x + 9 = 20
2. 5y = 40
3. 6a + 3a
Answers:
1. 11
2. 8
3. 9a
