Justin had $49 before spending n dollars on Jeans. How much money remains? Translate to an algebraic expression

Let n^1=Dollar spend on Jeans

Let n^2=Remaining money

Now,49-n^1=n^2
49=n^2+n^1
49-n^1=n^2
=49-n^1-n^2
=49-2n
2n=49
n=49/2
=$24.5

therefore,The total money remains=$24.5
The Money spend on jeans=$24.5

To translate this scenario into an algebraic expression, let's assign a variable to represent the amount of money Justin has remaining after spending some money on jeans.

Let's use the variable "r" to represent the remaining money. We know that Justin had $49 before spending n dollars on jeans. So, after spending n dollars, he has "$49 - n" dollars remaining.

Therefore, the algebraic expression would be: r = 49 - n.

49 - n = ?