Question

Решить систему неравенств

Answer 1

$left { {{4x+9 leq 9x+4} atop {1.7x<51}} right.$

$left { {{4x-9x leq 4-9} atop {x<30}} right.$

$left { {{-5x leq -5} atop {x<30}} right.$

$left { {{x geq 1} atop {x<30}} right.$

$1 leq x<30$