Jim bought 2 packs of batteries from a store. The price of each pack was the same. After he bought the batteries, his account balance showed a charge of −$23.94. What would have been the change to Jim's account balance had he bought only 1 pack of batteries from the store? −$21.94
−$11.97
$11.97
$21.94

$11.97

Step-by-step explanation:

$23.94 divided by the two packs of batteries equals $11.97 therefore if he only purchased one it would be said amount.

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!