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Verified answer
Kelas 10 MatematikaBab Fungsi Komposisi
(fof) (x) = 9
f (2x - 1) = 9
2(2x - 1) - 1 = 9
4x - 2 - 1 = 9
4x = 9 + 3
x = 12/4
x = 3
9 = 2x - 1
2x = 9 + 1
x = 10÷2
= 5
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