Question

Ms. Jan brought cookies for her class. She gave out half of them in the morning. At lunch, she gave out 12 more. She had 10 cookies left. How many cookies did she bring in?

Answer 1

Explanation:

44

Answer 2

Explanation:

Let
`c` be the total cookies.

`(1)/(2)c+12+10=c`

`(1)/(2)c+22=c`

`c+44=2c` (multiplied both sides by 2)

`44=c` (subtracted c from both sides)

`c=44`

She began with 44 cookies.