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Dari pers (1) dan (2) didapat
3a + 5b + 7c + 9d = 98 ..............................(5)
Dari pers (2) dan (3) didapat
5a + 7b + 9c + 11d = 650............................(6)
Dari pers (3) dan (4) didapat
7a + 9b + 11c + 13d = x - 800 ...................(7)
Dari pers (5) dan (6) didapat
2a + 2b + 2c + 2d = 552 .............................(8)
Dari pers (6) dan (7) didapat
2a + 2b + 2c + 2d = x - 150........................(9)
Dari pers (8) dan (9) didapat
x - 150 - 552 = o ⇔ x = 702
Jadi nilai 16a + 25b + 36c + 49d = 702