c + v = 40

4c + 6v = 180

Equation 1 is in the correct format.

Equation 2 is in the correct format.

4c + 6v = 180

4c + 6v - 6v = 180 - 6v

4c = 180 - 6v

4c | |

4 |

= |

180 - 6v |

4 |

c = | 180 - 6v |

4 |

1(c) + v = 40

1 * ((180 - 6v)/4) + v = 40

((180 - 6v)/4) + v = 40

4 * (((180 - 6v)/4) + v = 40)

4 * (((180 - 6v)/4) + v = 40)

180 - 6v + 4v = 160

-6v + 4v = 160 - 180

-2v = -20

-2v | |

-2 |

= |

-20 |

-2 |

v = | -20 |

-2 |

v = 10

1c + 1(10) = 40

1c + 10 = 40

1c = 40 - 10

1c = 30

1c | |

1 |

= |

30 |

1 |

c = | 30 |

1 |

c = 30

c = **30** and v = **10**

Free Simultaneous Equations Calculator - Solves a system of simultaneous equations with 2 unknowns using the following 3 methods:

1) Substitution Method (Direct Substitution)

2) Elimination Method

3) Cramers Method or Cramers Rule Pick any 3 of the methods to solve the systems of equations 2 equations 2 unknowns

This calculator has 2 inputs.

1) Substitution Method (Direct Substitution)

2) Elimination Method

3) Cramers Method or Cramers Rule Pick any 3 of the methods to solve the systems of equations 2 equations 2 unknowns

This calculator has 2 inputs.

- cramers rule
- an explicit formula for the solution of a system of linear equations with as many equations as unknowns
- eliminate
- to remove, to get rid of or put an end to
- equation
- a statement declaring two mathematical expressions are equal
- simultaneous equations
- two or more algebraic equations that share variables
- substitute
- to put in the place of another. To replace one value with another
- unknown
- a number or value we do not know
- variable
- Alphabetic character representing a number

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