Question

$1-5x+ frac{4-x}{2} textgreater 0$ решите нер-ство

Answer 1

1-5x+ (4-x)/2>0

2*1-2*5x+2*(4-x)/2>2*0

2-10x+4-x>0

6-11x>0

-11x>-6

x<6/11