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Sistim elimanasi2x + 3y = -13 | x1
-x + 2y = -4 | x2
……………………
Akan menjadi :
2x + 3y = -13
-2x + 4y = -8
……………………… +
Dan sisanya
7y = -21
y = -21/7 = -3
Jadi nilai y = -3
untuk nilai X dapat di cari dengan cara sbb:
-x + 2y = -4
-x + 2(-3)= -4
-x + (-6) = -4
-x - 6 = -4
-x = -4 + 6
-x = 2
X = -2
Jadi nilai X = -2