Solving 3 variable systems of equations by substitution

All in One Place

Everything you need for JC, LC, and college level maths and science classes.

Learn with Ease

We’ve mastered the national curriculum so that you can revise with confidence.

Instant Help

24/7 access to the best tips, walkthroughs, and practice exercises available.

0/1
?
Intros
Lessons
  1. How to Solve Three Variable Systems of Equations?
0/3
?
Examples
Lessons
  1. Solving Three Variable Systems of Equations – (Easy)

    Solve the following system of equations by substitution:

    2x+3y+4z=02x + 3y + 4z = 0

    2y+3z=232y + 3z = 23

    z=5z = 5

    1. Solving Three Variable Systems of Equations – (Medium)

      Solve the following system of equations by substitution:

      3x5y+z=03x - 5y + z = 0

      x2yz=0x - 2y - z = 0

      z=2z = -2

      1. Solving Three Variable Systems of Equations – (Hard)

        Solve the following system of equations by substitution:

        15x+7y6z=915x + 7y - 6z = -9

        5x3y+6z=135x - 3y + 6z = 13

        z=4z = 4