First, combine like terms on the left side of the inequality:
#8c - (c - 5) > c + 17#
#8c - c + 5 > c + 17#
#7c + 5 > c + 17#
Next, subtract #color(red)(c)# and #color(blue)(5)# from each side of the inequality to isolate the #c# term while keeping the equation balanced:
#7c + 5 - color(red)(c) - color(blue)(5) > c + 17 - color(red)(c) - color(blue)(5)#
#7c - color(red)(c) + 5 - color(blue)(5) > c - color(red)(c) + 17 - color(blue)(5)#
#6c + 0 > 0 + 17 - color(blue)(5)#
#6c > 12#
Now, divide each side of the inequality by #color(red)(6)# to solve for #c# while keeping the inequality balanced:
#(6c)/color(red)(6) > 12/color(red)(6)#
#(color(red)(cancel(color(black)(6)))c)/cancel(color(red)(6)) > 2#
#c > 2#