Question 1046308
g, pounds of granola
n, pounds of nuts


{{{system((4.5g+7n)/(g+n)=6,g+n=7)}}}


OR


{{{system((4.5g+7n)/7=6,g+n=7)}}}


and then  {{{system(4.5g+7n=42,g=7-n)}}} and just make the substitution.