Diketahui fungsi f(x)= 5x - 7, jika f(a)= 8, nilai a adalah...
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Diketahui fungsi f(x)= 5x - 7, jika f(a)= 8, nilai a adalah...
2 Jawaban
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1. Jawaban zakipelajar
f(x)=5x-7
f(a)=8
5(a)-7=8
5a=8+7
5a=15
a=15/5
a=3
Nilai a=3 -
2. Jawaban newwiguna
f(x) = 5x - 7
f(a) = 5a -7
5a - 7 = 8
5a = 8 + 7
5a = 15
a = 15 / 5
a = 3