1)9/x-9=1. 2)11/x-5=5/x-11. 3)7/x-15=15/x-7. - вопрос №352889819912115511371515741611051919 от MorozMakc 21.06.2020 02:58

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 !

MorozMakc · 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...