If f(X+4) =3x+4 , then find the value of f(4) please explain it clearly .

asked Feb 1, 2022 194k views

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If f(X+4) =3x+4 , then find the value of f(4)
please explain it clearly .

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$\\ \sf\longmapsto f(x+4)=3x+4$

$\\ \sf\longmapsto f(x)=3x+4-4$

$\\ \sf\longmapsto f(x)=3x$

Now

$\\ \sf\longmapsto f(4)$

$\\ \sf\longmapsto 3(4)$

$\\ \sf\longmapsto 12$

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