Math Olympiad for Elementary | 2019 | Division E | Contest 2 | MOEMS | 2D

Problem: At the corner diner, lunches have one set price and dinners have another set price. Five lunches and three dinners cost $70, and three lunches and five dinners cost $74. Determine the cost of one lunch.

Key: Systems of equations, solving to get usable, useful ones to solve the problem.

REMINDER: Always answer the question the right way.

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