Need to know how to solve a matrixform linear equation in algebra? 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 a system for solving linear equations in Ax = B form.
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How To: Find the Percent Given Two Numbers

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How To: Find percent by mass & percent composition

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How To: Divide small numbers by big numbers

How To: Find the area of a parallelogram using geometry

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How To: Find the area of irregular shapes

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

How To: Find the Slope Given 2 Ordered Pairs
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