Eliminasi
2x + 5y = 18 (×4)
3x + 4y = 20 (×5)
Menjadi
8x + 20y = 72
15x + 20y = 100
____________ _
-7x = -28
x = -28/-7
x = 4
Substitusi
2x + 5y = 18
2(4) + 5y = 18
8 + 5y = 18
5y = 18 - 8
5y = 10
y = 10/5
y = 2
Maka,
Semoga membantu :)
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Eliminasi
2x + 5y = 18 (×4)
3x + 4y = 20 (×5)
Menjadi
8x + 20y = 72
15x + 20y = 100
____________ _
-7x = -28
x = -28/-7
x = 4
Substitusi
2x + 5y = 18
2(4) + 5y = 18
8 + 5y = 18
5y = 18 - 8
5y = 10
y = 10/5
y = 2
Maka,
Semoga membantu :)