Răspunsuri

2014-11-17T18:34:20+02:00
m+n+p=752
m+n=374
n+p=624


(m+n)+p=752
374+n=752
n=752-374
n=378


m+(n+p)=752
m+624=752
m=752-624
m=128

n+p=624
378+p=624
p=624-378
p=246