Log7 1 x log. Lg 3x 7 lg x +1 0. log 1/7 7-x -2. log7 3-2x logx 3-2x=log7 3-2x. x2 - x одз.

Log7 1 x log. Lg 3x 7 lg x +1 0. log 1/7 7-x -2. log7 3-2x logx 3-2x=log7 3-2x. x2 - x одз.
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