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Algebra Revision

Equations, sequences & expressions — part of Maths on KODO.

AQA Edexcel OCR WJEC SQA

Algebra is a core area of Maths in the national curriculum. It covers essential concepts that build the foundation for GCSE study and beyond.

This topic includes subtopics such as Solving linear equations, Simplifying expressions, Sequences (nth term), Inequalities and more. Each area is tested with multiple-choice questions that include detailed explanations to deepen your understanding.

Quick Reference

Solve x + 5 = 12x = 7 (subtract 5 from both sides)
Expand 3(x + 4)3x + 12
Simplify 5x + 3x8x (add like terms)
nth term of 2, 5, 8, 113n − 1

Key Definitions

Variable
A letter (like x or y) used to represent an unknown number.
Expression
A combination of numbers, variables and operations (e.g. 3x + 5) — no equals sign.
Equation
A mathematical statement with an equals sign showing two expressions are equal (e.g. 2x + 3 = 11).
Coefficient
The number in front of a variable (in 5x, the coefficient is 5).
Linear sequence
A sequence where the difference between consecutive terms is constant (e.g. 2, 5, 8, 11).
Substitution
Replacing a variable with a given number to evaluate an expression.

What You'll Cover

Solving linear equations
Simplifying expressions
Sequences (nth term)
Inequalities
Expanding brackets
Substitution
Sequences and nth term
Expanding brackets and factorising

Test Yourself — Algebra

Try 3 quick questions. No account needed.

Quick Quiz

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Memory Tricks & Mnemonics

"Same Change Flip" for dividing fractions

Keep the first fraction the same, change ÷ to ×, flip the second fraction.

"BIDMAS" — Brackets, Indices, Division, Multiplication, Addition, Subtraction

Remember the correct order of operations in calculations.

"Whatever you do to one side, do to the other"

The golden rule for solving equations — keep both sides balanced.

Frequently Asked Questions

What is Solving linear equations in Maths Algebra?+
Solving linear equations is a key subtopic within Algebra in Maths. It's covered in the KS3 curriculum and tested in assessments. KODO provides multiple-choice questions with detailed explanations to help you master this area.
What is Simplifying expressions in Maths Algebra?+
Simplifying expressions is a key subtopic within Algebra in Maths. It's covered in the KS3 curriculum and tested in assessments. KODO provides multiple-choice questions with detailed explanations to help you master this area.
What is Sequences (nth term) in Maths Algebra?+
Sequences (nth term) is a key subtopic within Algebra in Maths. It's covered in the KS3 curriculum and tested in assessments. KODO provides multiple-choice questions with detailed explanations to help you master this area.
What is Inequalities in Maths Algebra?+
Inequalities is a key subtopic within Algebra in Maths. It's covered in the KS3 curriculum and tested in assessments. KODO provides multiple-choice questions with detailed explanations to help you master this area.
What is Expanding brackets in Maths Algebra?+
Expanding brackets is a key subtopic within Algebra in Maths. It's covered in the KS3 curriculum and tested in assessments. KODO provides multiple-choice questions with detailed explanations to help you master this area.
How many Algebra questions does KODO have?+
KODO's Algebra question bank is AI-powered and continuously expanding. Questions are multiple-choice with four options and include detailed explanations for every answer.
Is Algebra revision on KODO free?+
Yes! KODO offers free daily quiz sessions for all topics including Algebra. Revision cards are completely free with no limits. Pro users get unlimited quizzes and additional features.

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