Найти корень уравнения 847 (3)
5( x - 1,5 ) = 4 2/3x - 8 3/14 5x - 7,5 = 4 2/3x - 8 3/14 5x - 4 2/3x = 7,5 - 8 3/14 1/3x = 7 7/14 - 7 17/14 1/3x = - 5/7 x = - 5/7 : 1/3 x = - 15/7 x = - 2 1/7