\"\"

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The equation is \"\".

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Solve by algebraically.

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\"\"           (Subtract 21 from each side)

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\"\"                                     (Subtract: \"\")

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\"\"                   (Subtract 3x from each side)

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\"\"                                              (Simplify)

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The related function is f(x) = \"\".The root of a linear equation is the value of x

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when f(x) = 0.Since f(x) is always equal to \"\", this equation has no solution.\"\"

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The root of the equation \"\"  has no solution.

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