Buffet

At the school, buffet were 30 children. Twenty-one children bought sandwiches, and 15 children bought lemonade. The four children did not buy anything. How many children bought lemonade and sandwiches?

Final Answer:

x =  10

Step-by-step explanation:

x=21+15(304) x=21+1526=10



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algebraarithmeticbasic operations and conceptsGrade of the word problem

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