Ответ:
cos t = -24/25
sin t = \sqrt{1 - cos^{2}t }
sin t = \sqrt{49}
sin t = 7
tg t = sin t \ cos t = 7 × (-24)\ 25
ctg t = cos t \ sin t = -24 \ 175
9x+10-14x=-8x-5
9х-14х+8х=-5-10
3х=-15
х=-15/3
х=-5