Question

Tim sold half of his comics collection and then bought 16 more. If he now has 36, how many did he begin with?

Answer 1

Tim began with 40 comics

Further explanation:

The equation involve linear equation as there is only one object i.e. comic books

So,

Let x be the number of comic books Tim began with

Then after selling half comics Tim will have x/2 comics remaining

Now when he buys 16 more the expression will be:

$\frac{x}{2}+16$

He has total 36 books, then

$\frac{x}{2}+16= 36$

Subtracting 16 from both sides

$\frac{x}{2}+16-16= 36-16$

${\frac{x}{2}}= 20$

Multiplying 2 on both sides

${\frac{x}{2}}* 2= 20*2\\x=40$

We can recheck, if he had 40, half of them will be 20 and adding 16 makes them 36.

Tim began with 40 comics

Keywords: Equation in one variable, linear equations

Learn more about linear equations at:

• brainly.com/question/1859222
• brainly.com/question/1993757

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