Question 985026
x, price for 1 apple
y, price for 1 orange
y=x+5, price for 1 orange
x=y-5, price for 1 apple


3 apples and 1 orange
{{{3(y-5)+y}}}
{{{3y-15+y}}}
{{{highlight(4y-15)}}}


Given 3 apples plus 1 orange costs 61 cents,
{{{4y-15=61}}}
Solve for y.