1.

Determining number of solutions to linear equations

2.

Solving systems of linear equations by graphing

3.

Solving systems of linear equations by elimination

4.

Solving systems of linear equations by substitution

5.

Money related questions in linear equations

6.

Unknown number related questions in linear equations

7.

Distance and time related questions in linear equations

8.

Rectangular shape related questions in linear equations

9.

System of linear equations

10.

System of linear-quadratic equations

11.

System of quadratic-quadratic equations

12.

Solving 3 variable systems of equations by substitution

13.

Solving 3 variable systems of equations by elimination

14.

Solving 3 variable systems of equations with no or infinite solutions

15.

Word problems relating 3 variable systems of equations

Back to Course Index

Solve the following system of equations:

$2x - 3y + z = 3$

$6x - 12y + 4z = 8$

$-3x + 6y - 2z = 6$

$x + 6y - 7z = -2$

$2x + 12y - 14z = -4$

$4x + 24y - 28z = -8$

$x - 2y + z = 3$

$3x - 6y + 3z = 9$

$2x + 5y - z = -6$

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