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# The system of equations $3x+2y+z=6, 3x+4y+3z=14, 6x+10 y +8z=a,$ has infinite number of solutions, if $a=$

$(a)\;8 \quad (b)\;12 \quad (c)\;24 \quad (d)\;36$

Can you answer this question?

(d) 36
answered Nov 7, 2013 by