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6x-2x = -11 + 3
4x = -8
x = -2
jawabbnya tidak ada harusnya x = -2 kalau tidak percaya ,masukan x = -2 ke persamaan diatas
6 x (-2) -3 = 2 x ( -2 ) - 11
-12-3 = -4-11
-15 = -15 ( kiri kanan sama brarti terbukti ) dan jawaban x = -2