Jay had 1/8 as many markers as Cody. When Cody gave half of his markers to Jay, he then had 4 fewer markers than his friend. How many markers did Cody have at first?
Originally j = 1/8 c
then cody gives 1/2 to jay
j + 1/2 c = 1/2 c + 4 sub in the red equation
1/8c + 1/2 c = 1/2 c + 4
c = 32 originally ( j = 1/8 c = 4)