Question

упрости 4-(5-х+4)-(х+5)*2​

Answer 1

Ответ:

$4-(5-x+4)-(x+5)*2=4-5+x-4-(x*2+5*2)=4-5+x-4-(2x+10)=\\\\=4-5 +x-4-2x-10=-15-x$