6 notebooks cost the same amount as 8 pens. each notebook costs 3.50 mote than each pen. How much does each pen cost?

Answer 1

6n = 8p or n = 4p/3

n = p+3.5
4p/3 = p + 3.5
times 3
4p = 3p + 10.5
p = 10.5

Answer 2

I have the same question as Lion, can someone give a answer!