Răspuns :
a=ionel
b=aurel
a+b=388 ⇒a=388-b
a+73=b-25
388-b+73=b-25
461-b=b-25
2b=486⇒b=243 (Aurel)
a=388-b=145 (Ionel)
b=aurel
a+b=388 ⇒a=388-b
a+73=b-25
388-b+73=b-25
461-b=b-25
2b=486⇒b=243 (Aurel)
a=388-b=145 (Ionel)
x= Ionel
y=Aurel
x+73=y-25 => x=y-25-73=y-98
x+y=388
y+y-98=388
2y=388+98
2y=486
y=486:2
y=243 => x=243-98=145
Ionel are 145 nuci, iar Aurel are 243
y=Aurel
x+73=y-25 => x=y-25-73=y-98
x+y=388
y+y-98=388
2y=388+98
2y=486
y=486:2
y=243 => x=243-98=145
Ionel are 145 nuci, iar Aurel are 243