Răspuns :
a+b=182
4a+3b=624
=> a+ 3(a+b)= 624
=>a+ 3• 182= 624
=> a= 624- 546 => 72 => b = 182-72=> b= 110
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
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