Răspunsuri

2014-10-12T09:15:06+03:00
X*y=925
(x+12)*y=1225
xy+12y=1225
925+12y=1225
12y=1225-925
12y=300
y=25
x=925:25
x=37
2014-10-12T09:23:23+03:00
A ori b= 925
a ori (b+12)=1225
a*b+12a=1225
925+12a=1225
12a=1225-925
12a=300
a=300/12
a=25
b=925:25 deci b=37
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