Since the sandwich cost 3 times as much as the chips and the sandwich is $6 then the chips must cost $2.
C = 6(5) + 2b
42 = 30 + 2b
12 = 2b
6 = b
Answer: Casey bought 6 bags of chips
To isolate the variable means to have it by itself on one side of the equation, where the variable equals an expression.
To isolate 
, we will need to remove the variables and other terms "connected" to the variable:
By dividing terms "connected" to our variable, we have isolated it one side of the equation.
Maybe 240 I just multiplied 15 and 16 because 12 times 4 is 16
75÷500 = 0.15 multiply with a hundred to get percentage equals 15℅
