The real numbers $x$, $y$ and $z$ satisfy the equations $x + 2y + 3z = 950$ and $3x + 2y + z = 1450$. What is the average of $x$, $y$ and $z

The real numbers x,y  and z satisfy the equations x+2y+3z=950 and 3x+2y+z=1450. What is the average of x, y and z?