Răspuns :
(10 x 10 + 100 : 10 - 10 x a) : 10 =10
( 100 + 10 -10a ) : 10 =10
( 110 - 10a ) : 10 = 10
Impartim toata paranteza la 10
11 - a = 10
a = 11 - 10 = 1
( 100 + 10 -10a ) : 10 =10
( 110 - 10a ) : 10 = 10
Impartim toata paranteza la 10
11 - a = 10
a = 11 - 10 = 1