<PRE><B>Question 214099</B>
70 &amp;#8805; (73 + 83 + 85 + 90 + 2x) / 6 &amp;#8805; 79


70 &amp;#8805; (331 + 2x) / 6 &amp;#8805; 79


420 &amp;#8805; 331 + 2x &amp;#8805; 474


89 &amp;#8805; 2x &amp;#8805; 143


44.5 &amp;#8805; x &amp;#8805; 71.5</PRE>