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x +y = 2
x +y = 2
x +(2x -4) = 2
x +2x -4 = 2
3x = 2 +4
3x = 6
x = 6/3
x = 2
y = 2x -4
y = 2(2) -4
y = 4 -4
y = 0
Jadi, himpunan penyelesaiannya adala {(2,0)}.
Itu jawabannya.