2x - y = -4 x - y = -1
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Jawab:
x = 0 y = 1
Penjelasan dengan langkah-langkah:
2x - y = -1
-y = -1 + 2x
y = 1 - 2x . . . . (1)
.............................
-4x - y = -1
substitusikan y = 1 - 2x
-4x - (1 - 2x) = -1
-4x - 1 + 2x = -1
-2x -1 = -1
-2x = 0
x = 0 . . . . . (2)
...............................
-4x - y = -1
substitusi x = 0
-4(0) - y = -1
0 - y = -1
-y = -1
y = 1
[answer.2.content]
