Question

Match the correct pair.

• A. equation
• B. Odd numbers
• C. Even numbers

Answer 1

i) In $2x$, if we substitute $x$ = 1,2,3,4.........
we get: 2,4,6,8,.....(these are even numbers)
Thus, $2x$ represents even numbers.

ii) An equation is a statement that asserts the equality of two expressions.
So, $r=5$ is an equation.

iii) In $2x+1$, if we substitute $x=$ 0,1,2,3,4.........
we get 1,3,5,7,9.....(these are odd numbers)
Thus,$2x+1$ represents odd numbers.