Помогите с (В) и ( Г)

Question

Помогите с (В) и ( Г)

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Answer 1

В) 2 это log 3 (9) => (2x + 6) = 9 => 2x = 3 => x =1.5
г) 2x - 3 = 4x -1 => -2х = 2 => x = -1