3x+2y=5 2x-4y=-34 Tolong bantuan nya
Matematika
chilimaharani18
Pertanyaan
3x+2y=5
2x-4y=-34
Tolong bantuan nya
2x-4y=-34
Tolong bantuan nya
1 Jawaban
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1. Jawaban newwiguna
3x + 2y = 5 (x2)
2x - 4y = -34 (x1)
----------------------------
6x + 4y = 10
2x - 4y = -34
---------------------------- +
8x = -24
x = -24/8
x = -3
2(-3) - 4y = -34
-6 - 4y = -34
-4y = -34+6
-4y = -28
y = 7