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Metode Eliminasi
x + 2y = 3
x + y = 5 _
y = -2
Masukkan y,
x + y = 5
x - 2 = 5
x = 5 + 2
x = 7
Jadi, HP = {7, -2}
Nomor 2 :
2x - 3y = 3
y = 2x - 1
Masukkan y,
2x - 3y = 3
2x - 3(2x - 1) = 3
2x - 6x + 3 = 3
-4x = 3 - 3
-4x = 0
x = 0
Masukkan x,
y = 2x - 1
y = 2(0) - 1
y = -1
Jadi, HP = {0, -1}