Unit 3 · Class 7 IB MYP · Formula Sheet

Algebraic Expressions Formulas — Class 7 IB MYP

Simplify, expand, and factor basic algebraic expressions with one or two variables.

Key Formulas

Expanding

a(b + c) = ab + ac

Collecting Like Terms

3x + 2y - x + 5y = 2x + 7y

Substitution

\text{Replace variable with value and evaluate}

Worked Examples

1Using: Linear Equation

Solve 3x + 5 = 20.

Step 1: 3x = 20 - 5 = 15.

Step 2: x = 15 / 3 = 5.

Answer: x = 5

2Using: Algebraic Identity

Expand (a + 3)^2.

Step 1: Using (a + b)^2 = a^2 + 2ab + b^2

Step 2: = a^2 + 6a + 9.

Answer: a^2 + 6a + 9

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More Class 7 IB MYP Formulas

Rational NumbersPercentages & Proportional ReasoningLinear EquationsAngle RelationshipsTransformationsArea & Perimeter

Frequently Asked Questions

How many formulas are in Class 7 IB MYP Algebraic Expressions?+
There are 3 formulas in the Algebraic Expressions chapter for Class 7 IB MYP. Each formula is essential for solving problems in this topic.
How to remember Algebraic Expressions formulas easily?+
Practice regularly with worked examples, group related formulas together, and use SparkEd's interactive practice mode to reinforce your memory through problem-solving.
Are these Algebraic Expressions formulas enough for exams?+
Yes, these formulas cover the complete IB MYP Class 7 syllabus for Algebraic Expressions. Practice applying them to different types of questions for full exam readiness.

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