Question

You went to lunch with your friend, and the bill was $19.00. Your lunch is $3.00 more than your friend's. How much was your friend's lunch?

Answer 1

$8

Explanation:

The cost of your lunch added to the cost of the lunch of your friend gives the total cost stated in the bill.

If the cost of your lunch is $3.00 more than your friend's and your friend's lunch is y in $, then the cost of your lunch will be

= y + 3

The sum

= y + y + 3

= 2y + 3

Equating to the bill amount

19 = 2y + 3

2y = 19 - 3

2y = 16

y = 8

the cost of your friend's bill was $8