SOLUTION: Hi I need your help with this problem : Kensho used a gift card to buy a $6 book. After the purchase, he had $14 left on his card. Create and Solve an equation to find the original

Algebra ->  Equations -> SOLUTION: Hi I need your help with this problem : Kensho used a gift card to buy a $6 book. After the purchase, he had $14 left on his card. Create and Solve an equation to find the original      Log On


   



Question 644888: Hi I need your help with this problem : Kensho used a gift card to buy a $6 book. After the purchase, he had $14 left on his card. Create and Solve an equation to find the original value of the gift card.
Answer by MathStudent15(9) About Me  (Show Source):
You can put this solution on YOUR website!
To find the original value on the gift card we will use the equation x-6=14
Before we do anything though, we will write a let statement,
Let x= original value of the gift card
Next, we solve.
So add 6 to both sides (if you do something to one side, you must do it to the other) x-6%2B6=14%2B6
So you get x=20