Question 1009772
x, how much grapes
y, how much cherries


Best to account for cost using both fruit quanties, pounds, as variables.
{{{(2x+1.5y)=9*5}}}


Do what you want with the form,
{{{2x+(3/2)y=45}}}


{{{(3/2)y=-2x+45}}}
{{{y=-2x(2/3)+(2/3)45}}}
{{{y=-(4/3)x+30}}}


{{{graph(450,450,-2,30,-2,30,-4x/3+30)}}}