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Verified answer
Materi : Nilai MutlakBahasan : Persamaan Nilai Mutlak
Jawaban : x = 7 atau x = - 15
Langkah - langkah :
|f(x)| = a, ⇒ f(x) = a atau f(x) = - a
|x + 4| - 5 = 6
|x + 4| = 11
⇒ x + 4 = 11
x = 7
⇒ x + 4 = - 11
x = - 15