Răspunsuri

2014-02-26T18:47:56+02:00
A+b+c=148
a=38
b-c=10
Inlocuiesc pe a in prima ecuatie   38+b+c=148. separ termenii   b+c=148-38   b+c=110  
b=110-c  Inlocuiesc pe b in ecuatia b-c=10    (110-c)-c=10   110 - 2c=10   2c=110-10   
2c=100   c=100:2   c=50   Calculez b   b=110-c   b=110-50   b=60
2014-02-26T18:50:07+02:00
A+b+c=148            148-38= 110(b+c)
a=38
b-c=10
b=c+10
b+c=110
c+10+c=110
2c+10= 110/-10
2c=100
c=100:2    c=50
110-50=60(b)
a+b+c=148
a+60+50=148
a+110=148/-110
 a=148-110
 a=38