Jason has $90 to spend. he wants to purchase a bag for $30, one eraser for $10, and three pencils. each of the pencils costs the price. this will use up all of jason’s money. determine the price of a pencil. show the equation used to work the problem.

90 = 30+10+3x

This equation shows that all the prices of the the bag, eraser, and pencils equals $90. So now all we have to do to find the price of a pencil is solve the equation.

First add the 30 and 10 together.

90 = 40+3x

Then subtract 40 from each side

50 = 3x

Lastly divide each side by 3

x = 16.67

The price per pencil is $16.67

Hope this helps!