Răspunsuri

2014-05-07T10:16:31+03:00
A+b=60
a-b=24=> a=24+b

24+b+b=60
2b=60-24
2b=36
b=36:2
b=18

a=24+18
a=42
2014-05-07T10:25:01+03:00
Din a—b=24 => a=24+b. Inlocuim b+24+b=60. Deci 2b+24=60. Deci 2b=36 rezulta ca b=18. Iar a=24+b=24+18=42. ;))