am nevoie de ajutor dau coroana

Răspuns:
[336+(x+2)/44-(111+222+333×2)/3]×2=7
[336+(x+2)/44-111(1+2+6)/3]×2=7
[336+(x+2)/44-111×9/3]×2=7
[336+(x+2)/44-333]×2=7
3+(x+2)/44=7/2
(x+2)/44=7/2-²3
x/44+2/44=1/2 /×2
x/22+2/22=1
x/22=1-2/22 /×22
x=22-2
x=20