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Bab Persamaan Linear
Matematika SMP Kelas VIII

1/x = a
1/y = b

6/x + 10/y = -1
6a + 10b = -1 → dikali 2 → 12a + 20b = -2

4/x + 25/y = 3
4a + 25b = 3 → dikali 3 → 12a + 75b = 9

12a + 75b = 9
12a + 20b = -2
----------------------- -
55b = 11
b = 11/55
b = 1/5

6a + 10b = -1
6a + 10 . 1/5 = -1
6a + 2 = -1
6a = -1 - 2
a = -3/6
a = -1/2

1/x = a
1/x = -1/2
x = -2

1/y = b
1/y = 1/5
y = 5

HP = { (-2, 5) }

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