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There are x students in Ms. Smith’s class and  of them like pizza. If 21 of the students like pizza, which equation can be used to find the number of students in the class?

 Jan 22, 2021
 #1
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umm there are no options. 

 

but let x be the number of people who like pizza and let y be the number of people who don't like pizza and z is the total number of students in the class. 

 

The equation is x+y=z

 Jan 22, 2021

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