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Find Gauss Elimination Back Substitution 7y+2x=11,3x-y=5

Solution:
Your problem -> Gauss Elimination Back Substitution 7y+2x=11,3x-y=5

Total Equations are 2

2x+7y=11 -> (1)

3x-y=5 -> (2)

Converting given equations into matrix form
 2 7 11 3 -1 5

R_2 larr R_2-3/2xx R_1

=
 2 7 11 0 0=3-3/2xx2R_2 larr R_2-3/2xx R_1 -23/2 -23/2=-1-3/2xx7R_2 larr R_2-3/2xx R_1 -23/2 -23/2=5-3/2xx11R_2 larr R_2-3/2xx R_1

i.e.

2x+7y=11 ->(1)

-23/2y=-23/2 ->(2)

Now use back substitution method

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