Solving 3 variable systems of equations by substitution

Solving 3 variable systems of equations by substitution

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


  • 2.
    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


  • 3.
    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