Скачать или смотреть Ch7 Finding the Unknown (part 2) | हिंदी व्याख्या | Class 7 Ganita Prakash II | NCERT Maths 2025

Welcome to Part 2 of Chapter 7, "Finding the Unknown," from the new NCERT Class 7 Maths book, Ganita Prakash II (2025). In this video, we simplify the core concepts of algebraic equations using easy-to-understand detailed steps.

This Hindi explanation is perfect for CBSE and NCERT students looking for a clear and detailed tutorial on the new syllabus.

Timestamps:
[00:00] - Recap of Part 1 (Weight Problems).
[01:07] - Matchstick Patterns: Solving for the $n$-th position using equations (e.g., $2n + 1 = 99$).
[05:50] - Analyzing the possibility of even/odd results in patterns (Logic check).
[08:24] - Formal Definition of an Equation: Understanding equality and algebraic expressions.
[11:45] - Concept of LHS (Left Hand Side) and RHS (Right Hand Side).
[14:40] - Section 7.2: Solving Equations Systematically: The golden rule of balanced operations (+, -, *, /).
[18:40] - Detailed walkthrough: Solving equations with variables on one side ($5x - 4 = 7$).
[20:38] - Solving equations with variables on both sides ($6y + 7 = 4y + 21$).
[23:40] - Special Case: Solving equations where the result is zero ($5s = 3s$).
[25:56] - Handling complex equations with brackets and negatives ($4(m+6) - 8 = 2m - 4$).
[28:45] - Creating an equation with No Solution ($x + 4 = x + 5$).
[30:10] - Common Mistakes: Why you should never divide by an unknown letter number.

Topics Covered:
NCERT Class 7 Maths Ganita Prakash II Solutions
Chapter 7 Finding the Unknown Part 2
Introduction to Algebra and Equations for Class 7
Step by step Method for Solving Unknowns

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Part 1    • Ch7 Finding the Unknown (part 1) | हिंदी व...  

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