Question
Asked Feb 7, 2020
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Solve the following system of equations. (Enter your answers as a comma-separated list. If there are infinitely many solutions, enter a parametric solution using t and/or s. If there is no solution, enter NONE.)

x1  +  2x2  +  4x3  =  2
x1  +  x2  +  2x3  =  1
(x1, x2, x3) = 
 
 
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Expert Answer

Step 1

Here the given equations are:

 

Algebra homework question answer, step 1, image 1

Step 2

Isolated x1 from equation (a) then substitute that value in equation (b):

 

Algebra homework question answer, step 2, image 1

Step 3

Now, put the value of x2  in equation (c) :

 

Algebra homework question answer, step 3, image 1

...

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