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a/b = 5/2.............(2)
c = (a + b)............(3)
Dari persamaan 2 kita tentukan nilai a
a/b = 5/2
a = 5b/2.....................(4)
Masukkan nilai persamaan 4 ke persamaan 1
5b/2 - b = 24
5b/2 - 2b/2 = 24
3b/2 =24
3b =24x2
3b = 48
b =48/3
b = 16
Dari persamaan 4 kita peroleh nilai a
a = 5b/2
= 5x16/2
a = 40
Dari persamaan 3 diperoleh nilai c
c = (a + b)
= 1/7 x (16 + 40)
= 1/7 x 56
= 56/7
c = 8
Semoga membantu ^^