Odpowiedź :
[tex]-8x-10\geq 13x+15\\\\-8x-13x\geq 15+10\\\\-21x\geq 25\ \ \ |:(-21)\\\\x\leq -1\frac{4}{21}\\\\x\in(-\infty;-1\frac{4}{21}>[/tex]
[tex]-8x-10\geq 13x+15\\\\-8x-13x\geq 15+10\\\\-21x\geq 25\ \ \ |:(-21)\\\\x\leq -1\frac{4}{21}\\\\x\in(-\infty;-1\frac{4}{21}>[/tex]