These 10 problems look impossible. They have tormented students for decades. You will now see them demolished.

Problem 1: The dreaded 'Two Trains Leaving a Station.' We demolish it with a simple table.

Problem 2: The 'Mixing Acid Solutions' problem. We demolish it by focusing only on the amount of pure acid.

Problem 3: The 'Upstream/Downstream River Boat.' We demolish it by separating the boat's speed and the current's speed.

Problem 4: The 'Working Together to Paint a Fence' problem. We demolish it by thinking about their *rate* per hour.

Problem 5: A horrifying complex fraction. We demolish it by multiplying by its LCD over LCD.

Problem 6: A system of three variables. We demolish it by patiently eliminating one variable at a time.

Problem 7: A quadratic that won't factor. We demolish it with the unstoppable Quadratic Formula.

Problem 8: An absolute value inequality. We demolish it by splitting it into two separate, simple inequalities.

Problem 9: A radical equation with extra solutions. We demolish it by remembering to check our answers.