RÄspuns :
9supra9+x=9supra6
1+x=9supra6
aducem la acelasi numitor
6(1+x)=9
6+6x=9
6x=9-6
6x=3
x=3supra6=1supra2
1+x=9supra6
aducem la acelasi numitor
6(1+x)=9
6+6x=9
6x=9-6
6x=3
x=3supra6=1supra2