Răspuns:
20 si 5
Explicație pas cu pas:
Notam cu a si b numerele cautate
[tex]\display\style\bf\ a+b = 25\\\\a-b = 15 \:\: \: adunam \:cele\: 2\: ecuatii\\\\a+b+a-b = 25+15\\\\2a = 40\\\\a = 40 : 2\\\\\boxed{\display\style\bf\ a = 20}\\\\ 20+ b = 25 \\\\b = 25 - 20\\\\\boxed{\display\style\bf\ b = 5}[/tex]
