Răspuns :
[ ( a : 3 ) + 7 • 6 ] - 48 = 60
[ ( a : 3 ) + 42 ] = 60 + 48
( a : 3 ) + 42 = 108
a : 3 = 108 - 42
a : 3 = 66
a = 66 • 3
a = 198
[ ( a : 3 ) + 42 ] = 60 + 48
( a : 3 ) + 42 = 108
a : 3 = 108 - 42
a : 3 = 66
a = 66 • 3
a = 198