Solución

a+b=6,4,3,4a=4,8,16,5a+3b=10,28,41\bold{a}+\bold{b}=\lang −6,4,−3\rang , 4\bold{a}=\lang −4,−8,16\rang , −5\bold{a}+3\bold{b}=\lang −10,28,−41\rang