whats f(3) do u just sub the 3 instead of the x?
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yes u got it
sub 3 instead of x and get 3+5=8
so f(3) is 8
sub 3 instead of x and get 3+5=8
so f(3) is 8
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Yes
x + 5 Sub x = 3
=
8
x + 5 Sub x = 3
=
8
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yes. sub the 3 in place of the x and get 3 + 5 = 8