Class 7 Exam > Class 7 Videos > Extra Documents & Videos for Class 7 > "Simple Equations" Chapter 4 - Introduction - NCERT Class 7th Maths Solutions
"Simple Equations" Chapter 4 - Introduction - NCERT Class 7th Maths Solutions Video Lecture | Extra Documents & Videos for Class 7
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FAQs on "Simple Equations" Chapter 4 - Introduction - NCERT Class 7th Maths Solutions Video Lecture - Extra Documents & Videos for Class 7
| 1. What is the concept of simple equations in mathematics? |  |
Ans. Simple equations in mathematics involve finding the value of an unknown variable by performing various operations such as addition, subtraction, multiplication, and division on both sides of the equation. It helps in solving real-life problems and understanding the relationship between different quantities.
| 2. How do you solve a simple equation? | |
Ans. To solve a simple equation, follow these steps:
1. Identify the unknown variable in the equation.
2. Perform the same operation on both sides of the equation to isolate the variable on one side.
3. Simplify both sides by performing the necessary operations.
4. Verify the solution by substituting the found value back into the original equation.
| 3. Can you provide an example of solving a simple equation? | |
Ans. Sure, let's solve the equation: 3x + 5 = 17
1. Subtract 5 from both sides: 3x = 12
2. Divide both sides by 3: x = 4
Therefore, the solution to the equation is x = 4.
| 4. What are the applications of simple equations in real life? | |
Ans. Simple equations have various applications in real life, such as:
- Calculating the number of items to be purchased within a given budget.
- Determining the amount of time needed to complete a task based on the given rate.
- Solving problems related to speed, distance, and time.
- Finding the unknown value in situations involving proportions or ratios.
| 5. Are there any shortcuts or tricks to solve simple equations quickly? | |
Ans. Yes, there are a few shortcuts or tricks to solve simple equations quickly, such as:
- Combining like terms or simplifying the equation before starting the solving process.
- Using the distributive property to simplify expressions.
- Factoring the equation to check for common factors.
- Applying the inverse operations to isolate the variable efficiently.
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