Răspuns :
Notez cu a si b cele doua numere.
a+b=960
a-b=144=>a=144+b
144+b+b=960
2b+144=960
2b=960-144
2b=816
b=816:2
b=408
a=144+b=144+408
a=552
a+b= 960
a-b= 144
a= 144+b
144+b+b= 960
144+2b= 960
2b= 960-144
2b= 816
b= 816/2
b= 408
a= 144+b
a= 144+408
a= 552
v: a+b= 960
552+408= 960
960= 960
a-b= 144
552-408= 144
144= 144
a-b= 144
a= 144+b
144+b+b= 960
144+2b= 960
2b= 960-144
2b= 816
b= 816/2
b= 408
a= 144+b
a= 144+408
a= 552
v: a+b= 960
552+408= 960
960= 960
a-b= 144
552-408= 144
144= 144