Question 1188904
{{{(0.20(5) + 0.80x)/(5 + x))}}} = {{{0.30}}}
<pr>
{{{(1+ 0.80x)/(5 + x))}}} = {{{0.30}}}
<pr>
{{{1+ 0.80x}}} = {{{0.30(5 + x)}}}
<pr>
{{{1+ 0.80x}}} = {{{1.50 + 0.30x}}}
<pr>
{{{0.50x}}} = {{{0.50}}}
<pr>
{{{x = 1}}}