Răspunsuri

2014-08-09T13:16:59+03:00
A+b=1580

a:b=6  rest 5

a=6b+5

6b+5 +b =1580

7b=1580-5

7b=1575

b=225

a=1580-225

a=1355
2014-08-09T13:33:47+03:00
A+b= 1580
a:b= 6,5
a= 6* b+ 5
a= 6b + 5
revenind la a+b = 1580 =>
6b+5 +b =1580
7b= 1575
b= 225
a= 6b+ 5
a= 6 * 225 + 5
a= 1350+5
a= 1355
Proba: 1355+225= 1580 (corect)
1355: 225= 6,5 (corect)