Looking for a primer on how to solve systems of linear equations by substitution? Learn how with this free video algebra lesson. 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).
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How To: Remember "greater than" & "less than" symbols

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How To: Do long division without a calculator

How To: Find the Slope Given 2 Ordered Pairs

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

How To: Find a number given Its percent

How To: Write a slopeintercept equation given an XY table

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How To: Calculate percent composition for chemistry

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

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How To: Convert Fahrenheit to Celsius with a formula

How To: Calculate the height and volume of a pyramid

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How To: Use a protractor to measure an angle

How To: Find the Height of a Trapezoid.

How To: Solve word problems containing radical equations

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