Final answer:
To solve for the variables in a situation represented by two equations, you can set up a system of equations using the knowns and unknowns. It is easiest to solve for the unknown when there is only one unknown in an equation. If there are multiple unknowns, additional equations are needed to find the solution.
Step-by-step explanation:
When solving for the variables in a situation represented by two equations, it is easiest if you can find equations that contain only one unknown. This way, you can easily solve for the unknown. However, if the equation contains more than one unknown, you will need an additional equation to solve the problem. In some cases, several unknowns must be determined in order to find the one needed most.
To solve for the variables, you can use the knowns and unknowns to set up a system of equations. You may have to use two or more different equations to find the final answer.