Answer:
Each pan of brownies had
chips
Step-by-step explanation:
Savannah originally had 400 chocolate chips
Now, she saved x chocolate chips for garnish
This means that the amount she originally had decreased by x
Savannah now has 400-x chocolate chips to use for brownies
She divided this amount evenly into three pans. This means that the amount in each pan will be equal to the amount she has now divided by 3
This means that:
Each pan got
chips
Hope this helps :)