Răspuns :
a +b +c= 2000
a-b=c
⇒
a= b+c
b+c+b+c=2000
2b+2c=2000
2×(b+c)= 2000
b+c=1000
⇒
a=1000
a= descazutul
b= scazator
c= diferenta
a-b=c
⇒
a= b+c
b+c+b+c=2000
2b+2c=2000
2×(b+c)= 2000
b+c=1000
⇒
a=1000
a= descazutul
b= scazator
c= diferenta
D-s=d
D+s+d=2000
-----------------
D=?
D=s+d
D=2000:2
D=1000...=>s+d=1000
D+(s+d)=2000
1000+1000=2000
D+s+d=2000
-----------------
D=?
D=s+d
D=2000:2
D=1000...=>s+d=1000
D+(s+d)=2000
1000+1000=2000