Find the area between the curves

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$($

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$=$

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$3$

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$3$

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y$=$f$($x$)=$x

$3$

$3$x and

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$=$

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$($

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$)$

$=$

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$4$

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$2$

$+$

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y$=$g$($x$)=$x

$4$x

$2$

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$+$x on the interval

$0$

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$2$

$.$

$0$x$2.$