👤

-6-15+9-9=?
-6+49+7-48=?
6:(-6)-4:(-4)=?
(-2)²+4°-(-3)°=?

2·x+1)-9=?
3·x-1=-10=?
-x+2·=-10=?
HELP PLEASEEE!!!! DAU CEL MAI BUN RASPUNS+5 STELE+MULTUMESC+20 DE PCTE+COROANA


Răspuns :

-6-15+9-9=-21
-6+49+7-48=0
6:(-6)-4:-4=-1-(-1)=0
(-2)²+4°-(-3)°=4+1-1=4    (Orice numar ridicat la puterea 0 da 1)
2·x+1-9=2x-8 2x=8 x=8/2 x=4
3x-1=-10 3x=-11 x=-11/3
-x+2=10 x=-8