Question 637104
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
1/4x+1/3y= 5    || |multiplying thru by 3 to  eliminate the y variable 
<u> x - y= 6</u>             {{{y= x-6}}}
{{{1&3/4x = 21}}}
{{{(7/4)x = 21}}}
   x = {{{21*(4/7)}}}
    x = 12    and  y = 6
and
 {{{12/4 + 6/3 = 5}}}