1)9/x-9=1. 2)11/x-5=5/x-11. 3)7/x-15=15/x-7. 4)1/(x+6)+1/x-1=0. - вопрос №1991211551137151574161103528564 от sanka37rus 15.11.2020 05:23

Question

Алгебра: 1)9/x-9=1. 2)11/x-5=5/x-11. 3)7/x-15=15/x-7. 4)1/(x+6)+1/x-1=0. 5)1/(x+9)+1/x-9=0 !

sanka37rus · Answer

9 - 9x = x9 = 10xx = 9/1011 - 5x = 5 - 11x6x = -6x = -17 - 15x = 15 - 7x-8 = 8xx = -1x - 1 + x + 6/(x-1)(x+6) = 02x + 5/(x-1)(x+6) = 0x не равен 1, -62x + 5 = 0x = -2.5x - 9 + x + 9/(x-9)(x+9)x = 0...