Mathematics, 04.01.2021 21:50, blacksabbath6922

One admission to a roller-skating rink costs x dollars and renting a pair of skates costs y dollars. A group pays $243 for admission for 36 people and 21 skate rentals. Another group pays $78 for admission for 11 people and 7 skate rentals. How much does it cost for admission?

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One admission to a roller-skating rink costs x dollars and renting a pair of skates costs y dollars....