Friday

October 24, 2014

October 24, 2014

Posted by **Matt** on Tuesday, October 25, 2011 at 11:46pm.

(a)

3x1 − 2x2 = −1

4x1 + 5x2 = 3

7x1 + 3x2 = 2

(b)

2x1 + 2x3 =1

3x1 − x2 + 4 x3 = 7

6x1 + x2 − x3 = 0

(c)

x1 + 2x2 − x4 + x5 =1

3x2 + x3 − x5 = 2

x3 + 7x4 =1

(d)

x1 =1

x2 = 2

x3 = 3

- Math -
**Steve**, Wednesday, October 26, 2011 at 1:51pmWhat's the problem? You have all the coefficients and constants. Just write them down as an array. Just copy what you have, throwing all the variable names away, aligning the numbers in columns.

For example, #c is

1 2 0 -1 1 | 1

0 3 1 0 -1 | 2

0 0 1 7 0 | 1

**Answer this Question**

**Related Questions**

Math - Which of the following are linear equations in x1, x2 and x3? (a) x1 + ...

science - 1 A ……... is a rectangular array of numbers that are ...

Math - Find a system of linear equations corresponding to the following ...

Linear Programming - calculate the lower bound from min z= 4x1 + 2x2 2x1 - 3x2...

Math help please check - Add or Subtract for #3-4 3. (2x2 + 6x + 1) + (–7x2 + ...

math - Consider the following 6 relations on the set of real numbers: A) y=2x&#...

Math - Show that the transformation T:R^2->R^2 given T(x1,x2)=(3x1-5x2,x1+2x2...

Math - Went ahead and did the HW the teach recommended but she did not post the ...

Linear Alebra - Show that the transformation T:R^2->R^2 given T(x1,x2)=(3x1-...

linear algebra - I am trying to find the inverse of matrix A but I don't know ...