(Х / 3 ) - 1 = ( 2Х + 6) / 4 ( X - 3) / 3 = ( 2X + 6) / 4 4 * ( X - 3 ) = 3 * ( 2X + 6) 4X - 12 = 6X + 18 6X - 4X = - 12 - 18 2X = - 30 X = - 15 Ответ При Х = - 15