From Ramanujan to calculus cocreator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to solve a simple inequality problem.
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How To: Use ">" (greater than) and "<" (less than) symbols

How To: Remember "greater than" & "less than" symbols

How To: Find the slope of a line given 2 points with fractions

How To: Graph the greatest Integer or floor function

How To: Calculate Faster Than a Calculator

How To: Identify characteristics of a sample during a survey

How To: Find a missing side of a triangle, similar to another

How To: Find a number given Its percent

How To: Find the area of a triangle when given 2 sides & angle

How To: Find the area & perimeter of triangles & squares

How To: Find the 100th term in a sequence

How To: Bisect a line segment

How To: Use a mean and scatter plot for Statistics

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How To: Find the slope from a set of points

How To: Use cross products to solve proportions
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