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3x + 0 = 9
x = 9/3
x = 3
2. 2x-6y=8
0 - 6y= 8
y = 8/-6
ganti semua y menjadi 0
3x+5(0) = 9
3x+0=9
3x = 9+0
3x = 9
x = 9/3
x = 3
2. 2x-6y = 8 , untuk x = 0
ganti semua x menjadi 0
2(0)-6y = 8
0-6y = 8
-6y = 8+0
-6y = 8
y = 8/-6
y = 4/-3
y = -1 1/3
semoga membantu thx