Question

Решите, пожалуйста, системы неравенств.

Answer 1

711) 

$left { {{2x textgreater 1} atop {-3x textgreater -15}} right.$

$left { {{x textgreater frac{1}{2} } atop {x textless 5}} right.$

x∈ (0,5 ; 5)

712)

$left { {{-3x textgreater -6} atop {5x textgreater 3}} right.$

$left { {{x textless 2} atop {x textgreater frac{3}{5} }} right.$

x∈ (0,6 ; 2)

713)

$left { {{3x textgreater -2} atop {-2x textgreater -1}} right.$

$left { {{x textgreater -frac{2}{3}} atop {2x textless 1}} right.$

$left { {{x textgreater -frac{2}{3}} atop {x textless frac{1}{2} }} right.$

x∈ (-$frac{2}{3}$ ; 0,5)

714) 

$left { {{4x textless -2} atop {-2x textgreater 10-7}} right.$

$left { {{x textless - frac{1}{2} } atop {-2x textgreater 3}} right.$

$left { {{x textless - frac{1}{2} } atop {x textless 1,5}} right.$

x∈ (-∞ ; -0,5)

715) 

$left { {{5x textless -4} atop {3x textgreater -1,5}} right.$

$left { {{x textless - frac{4}{5} } atop {x textgreater - frac{1}{2} }} right.$

x∈ ∅

716) 

$left { {{-2x textless -3} atop {6x textgreater 2}} right.$

$left { {{x textgreater 1,5} atop {x textgreater frac{2}{3} }} right.$

x∈ (1,5 ; ∞)

717) 

$left { {{-6x textless 14-2 atop {5x textless 1+21}} right.$

$left { {{-6x textless 12 atop {5x textless 22}} right.$

$left { {{x textgreater -2 atop {x textless 4,4}} right.$

x∈ (-2 ; 4,4)

718) 

$left { {{-x textgreater 9-8} atop {6x textless 1-4}} right.$

$left { {{-x textgreater 1} atop {6x textless -3}} right.$

$left { {{x textless -1} atop {x textless - frac{1}{2}}} right.$

x∈ (-∞ ; -1)

719) 

$left { {{x textless -2} atop {2x textless -1}} right.$

$left { {{x textless -2} atop {x textless - frac{1}{2} }} right.$

x∈ (-∞ ; -2)

720) 

$left { {{3x textless -12} atop {2x textless 1}} right.$

$left { {{x textless -4} atop {x textless frac{1}{2} }} right.$

x∈ (-∞ ; -4)

721) 

$left { {{x-7x textless 2+1} atop {11x-x textgreater 3-13}} right.$

$left { {{-6x textless 3} atop {10x textgreater -10}} right.$

$left { {{x textgreater - frac{1}{2}} atop {x textgreater -1}} right.$

x∈ (-0,5 ; ∞)

722) 

$left { {{-x-x textless 2-3} atop {3x+2x textgreater 1+1}} right.$

$left { {{-2x textless -1} atop {5x textgreater 2}} right.$

$left { {{x textgreater frac{1}{2} } atop {x textgreater frac{2}{5} }} right.$

x∈ (0,5 ; ∞)

723) 

$left { {{4x textgreater -14} atop {2x textless 3}} right.$

$left { {{x textgreater -3,5} atop {x textless 1,5}} right.$

x∈ (-3,5 ; 1,5)

724) 

$left { {{5x textless 7} atop {-x textless 1-2}} right.$

$left { {{5x textless 7} atop {-x textless -1}} right.$

$left { {{x textless 1,4} atop {x textgreater 1}} right.$

x∈ (1 ; 1,4)

725) 

$left { {{x-2x leq 2+1} atop {3x-x leq 1 -5}} right.$

$left { {{-x leq 3} atop {2x leq -4}} right.$

$left { {{x geq -3} atop {x leq -2}} right.$

x∈ [-3 ; -2]

726) 

$left { {{3x-x geq 1+2} atop {-2x-x leq -2 - 4}} right.$

$left { {{2x geq 3} atop {-3x leq -6}} right.$

$left { {{x geq 1,5} atop {x geq 2}} right.$

x∈ [2 ; ∞)

Удачи!

Answer 2

Огромное спасибо.

Answer 3

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