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3x + 8 = 2x +28 3x - 2x = 28 - 8 x=20
8x+4 = 2x+28 8x-2x = 28-4 6x = 24 x = 4
28 + 2x = 120 2x = 120 - 28 2x = 92 x = 92/2 x = 46
2x+10=12 2x=2 x=1
2x + 10 = 182x = 8x = 4