10x + 6y - 4x + y, -6x + 7y, 6 + 7, 6x + 7y, 6y + 7x, 6x - 7y, 57, 7x + 3y - 2x + y, 57, 5 + 4, 5y + 4x, 7x + 5y, 5x + 4y, 5x - 4y, simbol pengoksidasi?, 236 hm= ....... m, 23.600 m, 250.000 ml, 20 mg = ......... cg, 2mm, 6cg, 2cg, 5cg

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