Kenny ordered guitar strings for Glenn's Guitar Shop. The premium guitar strings are $4.50 apiece. The standard guitar strings are $1.50 apiece. The bill smeared in the rain, but Kenny knows he ordered a total of 80 strings for $225. Kenny wants to solve for the number of each type of string, so he represents variables as shown. Let x = the number of premium strings. Let y = the number of standard strings.
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