Maths Simple Equation part 3 (Setting up Equation) CBSE Class 7 Mathematics VII

TL;DR

Learn how to set up and solve simple equations by following a four-step process.

Transcript

hello friends this video on simple equations part 3 is brought to you by exam fee or comm know about fear from exam so now let's start setting up an equation so how do we set up an equation how to be make an equation now there are certain simple rules that we will follow to set up an equation now for all of these just follow these steps and you wil... Read More

Key Insights

• 😑 The process of setting up equations involves assuming unknown values as variables, creating expressions based on given conditions, and equating them with the given values.
• 😫 Solving a simple equation requires further steps beyond setting it up.
• 📼 Example problems in the video involve finding unknown values by setting up and solving equations.
• 🔺 Mathematics concepts like triangles and properties of angles can be applied to solve algebraic equations.
• 🥶 The video promotes the platform ExamFee.com for free educational resources in various subjects.
• 😷 The four-step learning process on ExamFee.com includes watching video lessons, asking questions, referring to notes, and taking online tests.
• 🏛️ The platform offers content for classes 6 to 12 in physics, chemistry, mathematics, and biology, along with practical videos.

Questions & Answers

Q: How do you set up an equation?

To set up an equation, you first assume the unknown value as a variable. Then, create expressions based on the given conditions. Finally, equate the expressions with the given values.

Q: Can you provide an example of setting up an equation?

Sure! Let's say Pirates scored 2 marks more than twice Roman's score, and Roman's score is 20. We assume Roman's score as 'X'. So, the expression becomes 2 + 2X. Equating it with 20, we get 2X + 2 = 20.

Q: What is the next step after setting up the equation?

The next step is to solve the equation, which is explained in later sections of the video.

Q: How do you find the base angle of an isosceles triangle?

In an isosceles triangle, assume one of the base angles as 'X'. Create an expression for the vertex angle, which is twice either base angle (2X). Then, equate the sum of angles of the triangle (180 degrees) to find the base angle.

Summary & Key Takeaways

• The video explains the process of setting up an equation by assuming unknown values as variables, creating expressions based on given conditions, and equating the expressions with the given values.

• Three example problems are solved using this process, including finding the score of Roman given that Pirates scored 2 marks more than twice Roman's score, determining Laxmi's age given her father's age is 49 and he is 4 years older than 3 times Laxmi's age, and finding the base angle of an isosceles triangle given that the vertex angle is twice either base angle.