Penjelasan dengan langkah-langkah:
f(x) = 3x + 4
x → a → 3a + 4
f(x) = 7 → 3a + 4 = 7
3a = 7 – 4
3a = 3
a = 1
f(–3) = 3(–3) + 4
b = –9 + 4
b = –5
a + b = 1 – 5
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Penjelasan dengan langkah-langkah:
f(x) = 3x + 4
x → a → 3a + 4
f(x) = 7 → 3a + 4 = 7
3a = 7 – 4
3a = 3
a = 1
f(–3) = 3(–3) + 4
b = –9 + 4
b = –5
a + b = 1 – 5
a + b = –4