Question

Translate to a mathematical expression.

You can fill your tank of gas with 12 gallons of gas. On your last fill up you purchased x gallons of gas. How much gas was left in the tank before you filled up?

Answer 1

Anybody?

Answer 2

Well if you only needed to purchase 'x' gallons of gas to fill up

that would mean you had 12 - x gallons left in your tank

Say you had 7 gallons of gas left...then you would need to purchase 12 - 7 = 5 gallons to fill up

Answer 3

So just simply 12-x is the answer?

Answer 4

@johnweldon1993

Answer 5

Correct^ :)

Answer 6

Thank you

Answer 7

Of course :)