Consider the following word problem:
a pizzeria sells three sizes of pizza: small, medium, and large. the pizzas sell for $10, $11, and $15,
respectively. one evening they sold 31 pizzas and received $327. if they sold 24 more small than
medium pizzas, how many of each size did they sell?
use the gaussian elimination method with back substitution to solve the given word problem.
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small=
medium=
large=