f(3x+2)=4x+5 f(x)=......?
Matematika
SitiNurdayanti
Pertanyaan
f(3x+2)=4x+5
f(x)=......?
f(x)=......?
1 Jawaban
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1. Jawaban udink
f(3x+2)=4x+5
misalkan 3x+2=y maka x= (y-2)/3
f(y) = 4((y-2)/3)+5
f(y) =4y/3 -8/3 + 5
f(y) = 4y/3 + 7/3
maka kalau
f(x) = 4x/3 + 7/3