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2x + 4y = 8
2(2) + 4y = 8
4 + 4y = 8
4y = 8 - 4
4y = 4
y = 1
Himpunan Penyelesaian = {x, y} = {2, 1}
2x + 4y = 8
2(-2) + 4y = 8
-4 + 4y = 8
4y = 8 + 4
4y = 12
y = 3
Himpunan penyelesaian = {x, y} = {-2, 3}