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Daca a+b+c=519
B+c=119
a=???
a-(b+c)=???
a+b+c-500=??
AJUTOR! !!


Răspuns :

a+119=519
a=519-119
a=400
400-119=281
400+119-500=19
a+b+c=519
b+c=119
a+119=519
a=519-119
a=400
a-(b+c)=400-119=281
a+b+c-500=400+119-500=19