Practice - Practice Exercises
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Practice Questions
Test your understanding with targeted questions
Solve using substitution: x + y = 7; 2x - y = 4.
💡 Hint: Rearrange the first equation for y.
Solve using elimination: 2x + 4y = 10; x - 2y = 1.
💡 Hint: Align coefficients to eliminate a variable.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the first step in the substitution method?
💡 Hint: Think about what we do to replace a variable in an equation.
True or False: The elimination method involves nullifying a variable.
💡 Hint: Consider what happens when we combine the equations strategically.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
Calculate the price of each item sold at a flea market: If a vendor sells hats for $15 and shirts for $20. If 4 hats and 3 shirts cost $90, and 2 hats and 5 shirts cost $110, find the prices.
💡 Hint: Form equations based on costs and quantities.
A farmer has chickens and cows. If he has a total of 20 animals and he counts 56 legs, how many of each animal does he have?
💡 Hint: Let c be chickens and h be cows; formulate based on animals and legs.
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Reference links
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