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Verified answer
Diketahui :f(a) = -3a + 2
Penyelesaian
f(a+5) = -3(a+5) + 2
= -3a - 15 + 2
= -3a - 13
^_*
Verified answer
F(a) = -3a + 2f(a + 5) = -3(a + 5) + 17
f(x) = -3x + 17
misal (a+5) = x