a + 7b + 8b + 2a + 4c + 2a – 2b + 9a + c + 4c – a + 9b + 10a – 12b + 5c – 13a – 4c = n(a + b + c)
Maka n =
(a.) 13
(b.) -9
(c.) 21
(d.) -15
(e.) 10
Quiz (+50):
Jawaban:
c. 21/d.-15
Penjelasan dengan langkah-langkah:
maaf kalo salah
Jawab:
n = 10
Penjelasan dengan langkah-langkah:
a + 7b + 8b + 2a + 4c + 2a – 2b + 9a + c + 4c – a + 9b + 10a – 12b + 5c – 13a – 4c = n(a + b + c)
a(1+2+2+9-1+10-13)+b(7+8-2+9-12)+c(4+1+4+5-4) = 10a+10b+10c = 10(a+b+c)
n(a + b + c) = 10(a+b+c), maka n = 10