Monica planned her birthday party. She prepared 5 muffins for each of her guests and kept aside two additional muffins in case someone will want extra. After the party, it turned out that one of the guests didn't come but every one of the guests that did come ate six muffins and 1 muffins remained. How many guests did Monica plan on?
Select the correct option.
A) 3.
B) 4.
C) 5.
D) 6.
E) 7.
Let x be the number of guests.   Number of muffins prepared = 5x + 2   Number of muffins eaten + Number of muffins remaining = Number of muffins prepared   6(x - 1) + 1 = 5x + 2   6x - 5 = 5x + 2   x = 7   Answer: 7.5  + 2= 
<gadget id="calculator">5  + 2</gadget>
<output>7</output>
7   Answer: 7.
<result>E</result>
Monica planned her birthday party. She prepared 5 muffins for each of her guests and kept aside two additional muffins in case someone will want extra. After the party, it turned out that one of the guests didn't come but every one of the guests that did come ate six muffins and 1 muffins remained. How many guests did Monica plan on?