Решим 1 неравенство
7<2x+1<11<br>7-1<2x<11-1<br>6<2x<10<br>6:23 Решим 2 неравенство
(x+2)/(x-5)-(x-6)/(x-3)<0<br>[(x+2)(x-3)-(x-5)(x-6)]/(x-5)(x-3)<0<br>(x²+2x-3x-6-x²+5x+6x-30)/(x-5)(x-3)<0<br>(10x-36)/(x-5)(x-3)<0<br>x=3,6 x=5 x=3
_ + _ +
-------------(3)-----------(3,6)---------(5)--------------
x<3 U 3,6<x<5<br>
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--------------(3)------------(3,6)-------------(5)------------------
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x∈(3,6;5)