MEDIUM
7th CBSE
IMPORTANT
Earn 100

Seven times a number is 12 less than thirteen times the same number. Find the number.

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Chapter-Wise 3D Mathematics Videos from NCERT NCERT Exemplar Mathematics - Class 7

How to Form Equations From Solutions
05 min 10 sec

How to Form Equations From Solutions

You know to find the solution of simple equations. Let's make it the reverse. Find the equations from the solution—an interesting concept from the chapter Si...
What is an Equation?
03 min 01 sec

What is an Equation?

If I have ten oranges and you have x number of oranges which add up to 30 oranges, then we have an equation ready, which is 10 + x = 30. It is that simple! L...
Word Problem on Age
03 min 00 sec

Word Problem on Age

AGE! Some people don't reveal their age very easily! But, don't worry, we will learn how to find someone's age using linear equations in this video!