Question

999-111×2+10+a=1000
Urgent! Dau 30 puncte

Answer 1

$999-222+10+a=1000\\787+a=1000 |-787\\a=213$

Answer 2

Răspuns:

999-222+10+a=1000;

777+10+a=1000

787+a=1000

a=1000-787

a=213