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 graph and solve a system of linear inequalities in algebra.
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How To: Remember "greater than" & "less than" symbols

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How To: Perform an astonishing toothpick math trick

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How To: Do long division without a calculator

How To: Find a number given Its percent

How To: Determine the age of a fossil using carbon14

How To: Solve equations with the order of operations

How To: Spend Money on a Graphing Calculator? Nah—Just Use This WebBased TI Emulator

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

How To: Calculate Faster Than a Calculator

How To: Find the Percent Given Two Numbers

How To: Divide small numbers by big numbers

How To: Use ">" (greater than) and "<" (less than) symbols

How To: Calculate the area of a parallelogram

How To: Find the area of a circle when you know the diameter

How To: Find the formula of a piecewise function given a graph

How To: Calculate probability in "at least one" problems

How To: Use derivatives to find slope in calculus

How To: Solve advanced ratio problems in algebra

How To: Perform an astonishing toothpick math trick

How To: Clear fractions from linear equations in Algebra

How To: Solve reverse percentage problems

How To: Find the sides of a 454590 right triangle

How To: Do long division without a calculator

How To: Find a number given Its percent

How To: Determine the age of a fossil using carbon14

How To: Solve equations with the order of operations

How To: Spend Money on a Graphing Calculator? Nah—Just Use This WebBased TI Emulator
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