SOLUTION: Solve for a, b, and c in the following system of equations: 4b - c = -10 a - 2b = 5 3a + 4c = -11

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Question 327945: Solve for a, b, and c in the following system of equations:
4b - c = -10
a - 2b = 5
3a + 4c = -11

Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!
1.
2.
3.
Eliminate one of the variables.
From eq. 2,

Substitute into eq. 3,



4.
Multiply eq. 1 by (2) and add to eq. 4 to elminate c.



Then from eq. 4,



And finally from eq. 2,


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