Question

Afla a,b,c daca. a+b+c=960. a+b=53. b+c=74

Answer 1

$a+b+c=96$
$a+b=53$
$b+c=74$

$c=96-53=43$
$a=96-74=22$
$b=74-43=31$

Answer 2

a+b+c=960
a+b=53
b+c = 74
Din cele trei egalități ⇒sistem incompatibil