👤
a fost răspuns

(5/5+6/6_r)+6/5_5/10=9:3

Răspuns :

(5/5 + 6/6 - r ) + 6/5 - 5/10 = 9:3
(5/5 + 6/6 - r ) + 6/5 - 5/10 = 3
(5/5 + 6/6 - r ) + 6/5 = 3 + 5/10
(5/5 + 6/6 - r ) + 6/5 = 7/2
5/5 + 6/6 - r = 7/2 - 6/5 
5/5 + 6/6 - r = 23/10
2 + r = 23/10
r = 23/10 - 2
r = 3/10
(5/5 + 6/6 - r ) + 6/5 - 5/10 = 9:3 (5/5 + 6/6 - r ) + 6/5 - 5/10 = 3 (5/5 + 6/6 - r ) + 6/5 = 3 + 5/10 (5/5 + 6/6 - r ) + 6/5 = 7/2 5/5 + 6/6 - r = 7/2 - 6/5 5/5 + 6/6 - r = 23/10 2 + r = 23/10 r = 23/10 - 2 r = 3/10