ATA Rational Equations Quick Check

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What is a rational equation?

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A rational equation is an equation that involves at least one fraction whose numerator and/or denominator is a polynomial.

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How do you convert a mixed number to an improper fraction?

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To convert a mixed number to an improper fraction, multiply the whole number by the denominator, add the numerator, and place that result over the original denominator.

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Convert the mixed number to an improper fraction.

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Multiply both sides by -2.

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Divide both sides by 0.16.

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What does it mean to isolate a variable in an equation?

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Isolating a variable means to manipulate the equation so that the variable is on one side by itself.