w liczniku 6x-1, w mianowniku 2 - w liczniku x+7, w mianowniku 5 +w liczniku 2x-3, w mianowniku 15 ≤ 1
(6x-1)/2-(x+7)/5+(2x-3)/15<=1
(88x-63)/30<=1 /*30
88x<=93 /:88
x<=1+5/88
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(6x-1)/2-(x+7)/5+(2x-3)/15<=1
(88x-63)/30<=1 /*30
88x<=93 /:88
x<=1+5/88