Răspuns :
a+b+c=1000
a=b/4=>b=4a
c=a+b=>c=5a
a+4a+5a=1000
10a=1000=>a=1000:10=>a=100
b=4x100=>b=400
c=5x100=>c=500
a=b/4=>b=4a
c=a+b=>c=5a
a+4a+5a=1000
10a=1000=>a=1000:10=>a=100
b=4x100=>b=400
c=5x100=>c=500
a+b+c=1000
a=b:4⇒b=4a
c=a+4a=5a
a=?
b=?
c=?
a+4a+5a=1000
10a=1000
a=1000:10
a=100
b=4*100=400
c=100+400=500
a=b:4⇒b=4a
c=a+4a=5a
a=?
b=?
c=?
a+4a+5a=1000
10a=1000
a=1000:10
a=100
b=4*100=400
c=100+400=500