$\mathrm{R}_{1} \rightarrow \mathrm{R}_{1}-\mathrm{R}_{3} \;and\; \mathrm{R}_{2} \rightarrow \mathrm{R}_{2}-\mathrm{R}_{3}$
$\left[\begin{array}{ccc}1 & 0 & -1 \\ 0 & 1 & -1 \\ {[x]} & {[x]+2} & {[x]+4}\end{array}\right]=192$
$2[x]+6+[x]=192 \Rightarrow[x]=62$
માટે $x(\alpha, 1,2)+y(1, \beta, 2)+z(2,3, \gamma)=(0,0,0)$ હોય, તો $6 \alpha+4 \beta+\gamma=$..............
$ 2 x+7 y+\lambda z=3 $
$ 3 x+2 y+5 z=4 $
$ x+\mu y+32 z=-1$
ને અસંખ્ય ઉકેલો હોય, તો $(\lambda-\mu)=$...........