Răspuns :
a) 3x-3 -176+32x+15x-25<48x-126-78 =>50x-204< 48x-204 =>50x-48x<-204+204
=> 2x<0 => x<0 => x∈(-∞; 0)
b) 10x-5+6-10x +3x+3≤9x+18-14x+14 =>3x+4≤-5x+32 =>3x+5x≤32-4 =>8x≤28
=> x≤28:8 =>x≤3,5 => x∈(-∞; 3,5]
c) 8+9x+90+11x+132>6x-8+30-35-3x => 20x+230>3x-13 =>17x> -243 =>x > -243/17 => x∈(-243/17; +∞)
=> 2x<0 => x<0 => x∈(-∞; 0)
b) 10x-5+6-10x +3x+3≤9x+18-14x+14 =>3x+4≤-5x+32 =>3x+5x≤32-4 =>8x≤28
=> x≤28:8 =>x≤3,5 => x∈(-∞; 3,5]
c) 8+9x+90+11x+132>6x-8+30-35-3x => 20x+230>3x-13 =>17x> -243 =>x > -243/17 => x∈(-243/17; +∞)
a)3x-1-176+32x+15x-25<48x-126-78
-14x-202<48x-204
-14x-48x<202-204
-62x<-2
X=-62:-2
X=31