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-2x + 3 = 5
-2x = 5 - 3
-2x = 2
x = 2/(-2) = -1
2x - 3 = 5
2x = 5 - (-3)
2x = 5 + 3
2x = 8
x = 8/2 = 4
maka penyelesaiannya yaitu x = -1 dan x = 4