Răspunsuri

2014-10-13T17:16:03+03:00
A- numarul
predesesor = a-1
succesor =  a+1

a-1+a+1/2=198
2a/2=198
2a=198*2
a=198*2/2
a=198
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2014-10-13T17:17:36+03:00
A-1+a+a+1=198
3a +1-1=198
3a=198
a=198:3
a=66
a-1=66-1
a-1=65(predecesor)
a+1=66+1
a+1=67(succesor)
(a-1)+(a+1)= 198
a =198:2
a = 99
a-1=98(predecessor)
a+1=100(successor)
100+98=198