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·GRAFIK
3x + 5y = 8 dan 2x + 4y = -6
jawabnya dengan cara ya....
·GRAFIK
3x + 5y = 8 dan 2x + 4y = -6
jawabnya dengan cara ya....
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2x + 4y = -6 x 3
-------------------->
6x + 10y = 16
6x + 12y = -18
--------------------->
-2y = 34
y = 34 / -2
y = -17
substitusi
2x + 4.-17 = -6
2x - 68 = -6
2x = -6 + 68
2x = 62
x = 62 / 2
x = 31