You can
put this solution on YOUR website!They sold 5 times more batteries than pens.
Then pens=x and batteries=5x
When setting up the equation, make sure you read through it carefully.
the pens were $5 each and the batteries were $3 each.
so: $5(x) + $3(5x)=$960
5x+15x=960
20x=960

=

x=48
5x=240
*********They sold 48 boxes of pens and 240 boxes of batteries.*********
CHECK:
48x5=240
240x3=720
240+720=960