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b-c=7,a=14b=21calculati a×(b-c)+a-c

Răspuns :

b-c=7=>21-c=7=>c=7+21=>c=28
14×(21-28)+14-28
14×(-7)-14
-98-14
-112
b-c=7
b=7
c=21-7
c=14
a x (b-c)+a-c=14 x 7+14-14=98+0=98