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

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

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

How To: Do long division without a calculator

How To: Calculate Faster Than a Calculator

How To: Calculate percent composition for chemistry

How To: Divide small numbers by big numbers

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

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

How To: Find and sketch the domain of a multivariable function

How To: Calculate the area of complex shapes

How To: Find the Percent Given Two Numbers

How To: Find the area of a parallelogram using geometry

How To: Translate a shape

How To: Find the equation of a line given 1 point

How To: Square expressions involving radicals

How To: Find a number given Its percent

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

How To: Calculate the area of a parallelogram

How To: Find the area of an oblique triangle using formulas
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