Question

two numbers have a sum of 44. if one number is x, represent the other number as an algebraic expression in x. what is the answer ?

Answer 1

Let the other number be represented by y.

Now, since the sum of the two numbers is 44, we have that:

$x+y=44$

Now, we simply make y the subject of the relation by subtracting x from both sides of the equality sign, as follows:

$\begin{gathered} x+y=44 \\ \Rightarrow x+y-x=44-x \end{gathered}$$\Rightarrow y=44-x$

Therefore, the other number is given by:

$44-x$