Question

Solve using the Gauss Jordan elimination.

Answer 1

\[x_{1}- x _{2} + 3x _{3} = -1 \]
\[-2x _{1} + 5x _{2} -7x _{3}+ 2x _{4}= 2.8\]
\[4x _{1}- x _{2}+ 7x _{3}+ 2x _{4} = -3.6\]
\[3x _{1} - 2x _{2}+5x _{3}+5x _{4}= -4.4\]

Answer 2

@jim_thompson5910

Answer 3

Select the correct choice below and fill in the answer box(es) within your choice.
a. the unique solution is x1=__, x2=__. x3=___, and x4=___
b. the system has infinitely many solutions. The solution is x1=__, x2=__, x3=__ and x4=t
c. the system has infinitely many solutions. The solution is x1=__, x2=___, x3= s and x4= t.
d. there is no solution.

Answer 4

@jim_thompson5910

Answer 5

last question @jim_thompson5910

Answer 6

:) :D!!

Answer 7

did you ever get a look at that calculator link I sent you?

Answer 8

yes but it seems really confusing

Answer 9

well if you use that calculator, you would get this (see attached)

Answer 10

can u help me write it out?

Answer 11

x1= -4/5 , x2= 1/2, x3= 1/10, and x4=-3/10

Answer 12

those are your final answers, yes

Answer 13

is it a unique solution?

Answer 14

yes because it's the only one for this system

Answer 15

ohhh okay

Answer 16

thank you so much for your help much appreciated! :)

Answer 17

np

Answer 18

i definitely know who i need to contact to get help :)

Answer 19

i dont think so, maybe because he showed the user how to solve it :D