4x - (x+3) = 4x - x - 3 = 3x-3
если х= -5, то
3• (-5) - 3 = -15-3 = -18
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4x - (x+3) = 4x - x - 3 = 3x-3
если х= -5, то
3• (-5) - 3 = -15-3 = -18