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bcalle

I'm not getting any of these as the answer. I get (6,-1) as the answer.

We have to substitute the values : x = 6 and y = - 1 in the equation.
3 x + 7 y = 11
3 6 + 7 ( - 1 ) = 18 - 7 = 11
Answer:
C ) ( 6, - 1 )