There are many reasons why there are differences in price in Lemonade. The first is the volume or amount of the Lemonade. Obviously, the greater the amount of the Lemonade, the higher is its price. The price of the lemonade is given, the unit price then is $4.99/95 ounces = $0.053/ounce Another reason is the difference in the ingredients. Some Lemonade might have additional ingredients that could make the price higher. The difference in materials costs in different areas may also be the reason.
In an equation the Left hand side must equal the right hand side
4(5y-8-2)=185-15
20y-32-8=170
20y=170+32+8
20y=210
Therefore y=10,5
When you substitute the 10,5 and solve it on the left and side it's equal to 170 which is the answer on the right hand side