Răspunsuri

2014-07-30T18:41:03+03:00
A+b=245

a:(a-b)=4 rest 7
a=4(a-b)+7

a=4a-4b +7

a-4a=-4b+7
-3a=-4b+7
3a = 4b -7

a=(4b-7)/3

(4b-7)/3 +b=245 aducem la acelasi numitor

4b-7 +3b =735

7b=735+7

7b= 742

b=106

a=245-106
a=139
1 5 1