# How do you solve the system a + b + 2c = -11, a - 6b +3c = 22, 2a - 4b + c = 14?

##### 1 Answer

May 2, 2016

#### Explanation:

Use Elimination Method, Matrices, Determinants, or Graphing to solve. I am going to use the Elimination Method.

Multiply Eq.1 by -1 and then add to Eq.2

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Multiply Eq.2 by -2 and then add to Eq.3

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Multiply R1 by 5 and add to R2

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Put -5 in for b in R1

Put -5 for b and -2 for c into Equation 1 and solve for a.