Jawaban:
Penjelasan:
f(x) = 2x + 7
f(3b) = 2f(b) + 7
b = ...?
f(3b) = 2(3b) + 7
f(3b) = 6b + 7
f(b) = 2b + 7
6b + 7 = 2 (2b + 7) + 7
6b + 7 = 4b + 14 + 7
6b - 4b = 14 + 7 - 7
2b = 14
b = 14/2
b = 7 (E)
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Verified answer
Jawaban:
Penjelasan:
f(x) = 2x + 7
f(3b) = 2f(b) + 7
b = ...?
f(3b) = 2(3b) + 7
f(3b) = 6b + 7
f(b) = 2b + 7
6b + 7 = 2 (2b + 7) + 7
6b + 7 = 4b + 14 + 7
6b - 4b = 14 + 7 - 7
2b = 14
b = 14/2
b = 7 (E)