Răspuns :
SPER CA TE-AM AJUTAT :)
8 x 8 - 32 - ( 6 x i - 51) -(40 -2 x 10) = 3 x3 => i= 9

ex.1)
(81-36-a)+(13+7)=50+3
45-a+20=53
65-a=53
a=12
ex2)
(99-b-24)+6=16+50
75-b +6=66
81-b=66
b=81-66=15
(81-36-a)+(13+7)=50+3
45-a+20=53
65-a=53
a=12
ex2)
(99-b-24)+6=16+50
75-b +6=66
81-b=66
b=81-66=15