Răspunsuri

  • Utilizator Brainly
2014-07-27T13:17:28+03:00
A+b=182 4a+3b=624 => a+ 3(a+b)= 624 =>a+ 3• 182= 624 => a= 624- 546 => 72 => b = 182-72=> b= 110
2014-07-27T19:29:30+03:00
A+b=182     | -3
4a+3b=624     inmultim prima ecuatie cu -3

-3a-3b= - 546
4a+3b=624    adunam cele 2 ecuatii
a /=  78

b=182-78
b=104