Răspunsuri

2014-01-26T17:54:29+02:00
A+b=a-b+36
a+b= (a-b)*4
(a-b)*4=a-b+36
a-b)*3=36
a-b=12
a=b+12
a+b=48
b+b+12=48
b=18
a=30
2014-01-26T17:55:13+02:00
Fie x, y numerele
x+y=x-y+36 scadem x
2*y=36 impartim la 2
y=18

4*(x-y)=x+y
4*x-4*y=x+y
3*x=5*y
inlocuim pe y -> x=5*18/3
                        x=36