Question

розвязати нер-ть

1-x-(5x-3)/2>=(8-3x)/5

Answer 1

1-x-(5x-3)/2>=(8-3x)/5

10-10х-25х+15>=16-15-10

-29x >=-9

29x<=9

x<=9 / 29    да, он прав! сорри( 

Answer 2

$1-x-frac{5x-3}{2} geq frac{8-3x}{5};\ 10-10x-5(5x-3) geq 2(8-3x);\ 10-10x-25x+15 geq 16-6x;\ 25-35x geq 16-6x;\ -35x+6x geq 16-25;\ -29x geq -9;\ x leq frac{9}{29};\ (-infty; frac{9}{29}]$