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 an equation for a variable in algebra.
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How To: Remember "greater than" & "less than" symbols

How To: Find the Percent Given Two Numbers

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

How To: Do long division without a calculator

How To: Calculate the area of a parallelogram

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

How To: Calculate Faster Than a Calculator

How To: Find the area of a parallelogram using geometry

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

How To: Find the Volume of Composite Figures (Also Called Composite Shapes)

How To: Figure out the domain & range of a piecewise function

How To: Find extra points for a parabola (quadractic equation)

How To: Factor a trinomial with negative leading coefficient

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

How To: Use the ratio formula to find coordinates of a point

How To: Identify characteristics of a sample during a survey

How To: Find the Radius of a Circle from Arc Length

How To: Use a mean and scatter plot for Statistics

How To: Simplify cube roots

How To: Find the equation for a growth pattern

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

How To: Find the Percent Given Two Numbers

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

How To: Do long division without a calculator

How To: Calculate the area of a parallelogram

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

How To: Calculate Faster Than a Calculator

How To: Find the area of a parallelogram using geometry

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

How To: Find the Volume of Composite Figures (Also Called Composite Shapes)

How To: Figure out the domain & range of a piecewise function

How To: Find extra points for a parabola (quadractic equation)

How To: Factor a trinomial with negative leading coefficient

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

How To: Use the ratio formula to find coordinates of a point

How To: Identify characteristics of a sample during a survey

How To: Find the Radius of a Circle from Arc Length

How To: Use a mean and scatter plot for Statistics

How To: Simplify cube roots

How To: Find the equation for a growth pattern
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