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College Algebra  /  Alg 137  ·  Atom · ~20 seconds

Rational Equations

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A rational equation contains at least one rational expression; multiplying both sides by the LCD clears the denominators.

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1/x + 1/2 = 3/4: the LCD 4x turns it into 4 + 2x = 3x, a linear equation in plain clothes.

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The LCD multiplies every term on both sides.

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