CPM Homework Banner

Home > AC > Chapter 6 > Lesson 6.2.4 > Problem 6-71


Solve these systems of equations using any method. Check each solution, if possible.  

  • One strategy to solve this system of equations is to multiply the bottom equation by so you can eliminate.

    After finding , plug in its value into one of the equations to find the value of .

  • Because one of the equations above is already solved for , one strategy to solve this system is to substitute the first equation in for in the second equation.

  • Use the Equal Values Method.

  • Refer to part (a).