What this chapter is about
An equation is one of the most powerful tools in all of mathematics. It is a statement that says two expressions are equal. The moment you write an equals sign between two things, you have made a claim — a claim that can be tested, solved, and used to find unknown values.
Think about this situation: your friend says "I am thinking of a number. When I double it and add 5, I get 17. What is my number?" This situation, when translated into mathematics, becomes the equation 2x + 5 = 17. Your job is to find the number x that makes this statement true.
Learning objectives
- 1Explain class 7 Mathematics
- 2Explain setting Up Equations
- 3Explain variables and Expressions
- 4Explain translating Word Problems into Equations
- 5Explain solving Simple Equations
- 6Explain the Balance Analogy
Your learning path
Key terms
Example 1Example 2Example 3Example 4Example 5Problem 1Problem 2Problem 3Problem 4
Connected chapters
12Concepts
20Formulae
10Minutes