Amy bakes muffins for her friends. On Monday, she brings 1 muffin to school to share. Each day for the rest of the week she brings one more muffin to school than she did the day before. If on Saturday she counts that there are 7 muffins left, how many did she originally bake?
How many muffins does Amy bring in on Tuesday? ** On Tuesday, she brings in 1 + 1 = <<1+1=2>>2 muffins.
How many muffins does Amy bring in on Wednesday? ** On Wednesday, she brings in 2 + 1 = <<2+1=3>>3 muffins.
How many muffins does Amy bring in on Thursday? ** On Thursday, she brings in 3 + 1 = <<3+1=4>>4 muffins.
How many muffins does Amy bring in on Friday? ** On Friday, she brings in 4 + 1 = <<4+1=5>>5 muffins.
How many muffins did Amy bring to school to share? ** In total, she brought 1 + 2 + 3 +4 + 5 = <<1+2+3+4+5=15>>15 muffins to school to share with her friends.
How many muffins did Amy originally bake? ** She baked a total of 15 + 7 = <<15+7=22>>22 muffins.
#### 22