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Revision Notes

Simple Linear Equations

ICSE · Class 7 · Mathematics

Quick revision notes for Simple Linear Equations — ICSE Class 7 Mathematics. Key concepts, formulas, and definitions for last-minute revision.

47 questions26 flashcards5 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?
Simple Linear Equations covers several key topics that are frequently asked in ICSE Class 7 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Simple Linear Equations — ICSE Class 7 Mathematics?
Understand the core concepts first, then work through the 47 practice questions available for this chapter. Revise formulas and 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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