\"\"

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The equation is \"\".

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\"\"            (Add 4x to each side)

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\"\"

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\"\"                     (Divide each side by 3)

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\"\"

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\"\"

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Apply linear equation formula: \"\", where m and b are real numbers.

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Yes, the above equation is a linear function.It can written as \"\",

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\"\" and \"\".\"\"

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Yes, the above equation is a linear function.