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Verified answer
Sistem Persamaan Linier Dua VariabelUmpama :
Mangga = x
Jeruk = y
Metode Eliminasi
3x + 4y = 81000 × 2
2x + 6y = 104000 × 3
----------------------------
6x + 8y = 162000
6x + 18y = 312000
---------------------------- -
-10y = -150000
y = 15000
Metode Subsitusi
3x + 4y = 81000
3x + 4 (15000) = 81000
3x + 60000 = 81000
3x = 21000
x = 7000
5x + 5y =
5(7000)+5(15000) =
35000 + 75000 = 110000
Verified answer
Mangga = xJeruk = y
3x + 4y = 81000
2x + 6y = 104000
Cari x dan y dengan eliminasi
6x + 8y = 162000
6x + 18y = 312000
-10y = -150000
y = 15000
(substitusikan)
3x + 4y = 81000
3x + 4 x 15000 = 81000
3x + 60000 = 81000
3x = 21000
x = 7000
5x + 5y =
5 x 7000 + 5 x 15000 =
110000