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Learn to solve a real-world algebra word problem involving price increases and sales tax through this 14-minute mathematics tutorial. Work through a scenario where your favorite coffee doubled in price, and after adding 7% sales tax, you now pay $12.50 to determine the original price. Master the process of setting up algebraic equations correctly rather than guessing, and discover how to undo percentage increases, remove tax calculations properly, and solve step-by-step while avoiding common money-math mistakes. Explore why most people set up this type of problem incorrectly and develop a reusable test strategy for similar scenarios. Practice reversing percent changes, understanding how sales tax affects equations, and applying algebraic problem-solving techniques to real-world financial situations. This content addresses concepts commonly found in Algebra 1, standardized tests like GED, HiSET, ASVAB, SAT, and ACT, college placement exams, teacher certification tests, and practical financial mathematics applications.
