## Ch 6 Systems

This chapter introduces you to the idea of solving two equations with two variables. The skills mastered from chapter two are very important for this chapter.

## Solving Systems by Substitution Part 1

Here is an easy problem.

## Solving Systems by Substitution Part 2

Here is a medium problem. It's considered medium in difficultly because an equation is solved for X instead of Y.

## Solving Systems by Substitution Part 3

Here is a difficult problem. It's considered difficult because you have to rewrite an equation before you can substitute.

## Solving Systems by Elimination Part 1

This is an easy elimination problem.

## Solving Systems by Elimination Part 2

Here is a medium elimination problem. You have to do some work before you can eliminate.

## Solving Systems by Elimination Part 3a

Here is a version of a difficult elimination problem.

## Solving Systems by Elimination Part 3b

Here is another version of a difficult elimination problem.

## Applying Systems Part 1

Here is one example of a complex system word problem.

## Applying Systems Part 2

Here is another example of a complex system word problem.