Mathematics
Grade6
Easy
Question
100y – 100y
- 0
- 1
- 200y
- 100y
Hint:
This is an algebraic expression. An algebraic expression consists of two components: a variable and a constant. A variable is a quantity that doesn’t have any fixed value. It takes value according to the conditions. It is denoted by the alphabet. A constant is a quantity with a fixed value. In this question, we are given an expression. We have perform the required operations and find the final value.
The correct answer is: 0
The given expression is 100y – 100y
There is one variable in the above expression. The variable is: ‘y’. There are two terms in the above expression. We have to perform the operations between them and find the right answer.
If we see, both the terms contain the same variable. Such terms with the same variables are called “like terms.” And the terms with different variables are called “unlike terms.”
For like terms, we can perform the operations between their coefficients by keeping the variable constant. It means we can treat each term as a constant and perform operations like normal operations on constants.
For the above expression, we can perform an operation between the both the term as they have the same variable ‘y’. We will keep y constant. And perform subtraction between the coefficients.
Let’s see the expression
100y – 100y =(100 – 100)y
100y – 100y = 0
Therefore, the value of the equation is 0
So option which is ’0’, is the right option.
We have to be careful about the variables. Only like terms operate with each other.
