Question

Which statement describes an advantage of using a system of equations to solve a problem?

a. when the numbers are easy to graph
b. when an exact solution is needed
c. when one variable can be easily isolated
d. when the coefficients of like terms are multiples

Answer 1

Using a system of equations allows for an exact solution and easier solving when coefficients are multiples.

Step-by-step explanation:

The advantage of using a system of equations to solve a problem is that it allows for an exact solution (option b). When you have multiple equations with multiple variables, you can isolate one variable and use that information to solve for the other variables. This method is particularly useful when the coefficients of like terms are multiples (option d) because it simplifies the equations and makes the solution easier to find.