Chapter 1 - Solving Linear Equations - 1.1 - Solving Simple Equations - Essential Question - Page 3: 1

See explanation

You only have to think about situations that include an unknown that you have to clear. In real life we ​​are constantly using equations. A simple example: Suppose you want to buy $9$ soft drinks and they tell you that they cost a total of $72$ pesos. To find out how much each soft drink costs, we set up an equation.... $9R = 72$ (where $R$ is the cost on one soft drink) We clear the $R$ and we are left with $R = 72/9= 8$, which is the answer of how much each one costs. We mostly apply equations when we are going to plan our monthly expenses, when we also want to know how much we can spend on a project we want to do, to know how much we will spend in the day, or in the supermarket, etc...