Question 1020707
ASSIGN VARIABLES
<pre>
w        chocolate cookies
x        butter cookies
y        chocolate cakes
z        butter cakes
p        chocolate muffins
r        butter muffins</pre>

SYMBOLIZE THE DESCRIPTION
{{{system((w+x)-(y+z)=140,w/(w+x)=1/5,y/(y+z)=2/3,w=y,z=r,(y+z)/(p+r)=3/4)}}}


Look carefully and see this is six equations in six unknown variables.  You can begin solving it using the equalities of w or y; and z or r; to eliminate two variables, substitute into the system, simplify it, and have a system of FOUR equations in FOUR unknown variables.


From there, you would likely want to use row-elimination to solve the system for the four variables.  You will expect whole-number values for the solution.  This is undone here but for you to continue and finish.