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Revision Notes

Simple Linear Equations — Revision Notes

ICSE · Class 7 · Mathematics

Simple Linear Equations revision notes for ICSE Class 7 Mathematics: 4 topics in quick points. Part of the ICSE Class 7 Mathematics syllabus.

47 questions26 flashcards8 formulas & key relations5 concepts

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Key Topics to Revise

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1. Equation, Variable, and Solution

  • An equation is a statement that the two expressions are equal.
  • A variable is the unknown quantity in an equation, usually written as x, y, or z.
  • A solution or root is the value of the variable that makes the equation true.
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2. Operations That Keep an Equation Unchanged

  • The same number can be added to both sides of an equation without changing it.
  • The same number can be subtracted from both sides without changing it.
  • The same number can be multiplied to both sides without changing it.
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3. Solving Equations by the Short-Cut Method

  • Transposing means moving a term from one side of an equation to the other side.
  • When a positive term is transposed, its sign changes to negative.
  • When a negative term is transposed, its sign changes to positive.
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4. Contextual Problems and Two-Step Equations

  • A contextual problem has two operations, and the final solution depends on the first operation.
  • A common two-step form is 3x + 8 = 14.
  • First isolate the term with the variable, then isolate the variable itself.

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Full Notes

Key Concepts

An equation is a statementA variable is the unknown quantityThe solution is the valueAn equation remains unchanged ifIn transposition

Frequently Asked Questions

What are the important topics in Simple Linear Equations for ICSE Class 7 Mathematics?
Key topics in Simple Linear Equations include Equation, Variable, and Solution, Operations That Keep an Equation Unchanged, Solving Equations by the Short-Cut Method, Contextual Problems and Two-Step Equations. Study these first, then practise questions on each for Class 7 exams.
How should I revise Simple Linear Equations for Class 7 exams?
Learn the core ideas first, then work through the 47 practice questions on Simple Linear Equations. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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