The first step is to divide by four to both sides
Check the picture below.
now, since we know what "f" is, let us use the CNT triangle with the small COR one.
16x-32=48 /+32
16x=80/:16
X=5
To solve this problem, first we have to figure out how many total rolls Hanna buys.
3 packs*36 rolls in each pack = 108 total rolls
2 packs*24 rolls in each pack = 48 total rolls
108 rolls + 48 rolls = 156 rolls.
Next, it says that Hanna uses 8 rolls of film. To model this in our expression, we need to subtract 8 rolls from our total amount.
156-8 = 146 rolls
Hanna has 146 rolls left.
