SOLUTION: Create a matrix that represents the system of equations: -12x-13y+13z=15 7x-10y-3x=11 7x+14y+5z=-5

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Question 700955: Create a matrix that represents the system of equations:
-12x-13y+13z=15
7x-10y-3x=11
7x+14y+5z=-5
Found 2 solutions by MathLover1, Stitch:
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
-12x-13y%2B13z=15
7x-10y-3x=11.....you probably have 3z here
7x%2B14y%2B5z=-5

[-12... -13...13|15]
[7....... -10.. -3 |11]
[7.......... 14 .....5|-5]



Answer by Stitch(470) About Me  (Show Source):
You can put this solution on YOUR website!
Creating a matrix from the 1st and 3rd equations is easy. You just have to copy down the coefficient from each variable.
For the 2nd equation you need to combine the X terms and then copy down the coefficient. And since there are not any Z terms in the equation, you place a zero in the matrix for the Z's column.
matrix%283%2C4%2C-12%2C-13%2C13%2C15%2C4%2C-10%2C0%2C11%2C7%2C14%2C5%2C-5%29