The equation\[x=7\]in two variables, can be written as ____.

1.	The equation\[x=7\]in two variables, can be written as ____.
A.	\[~1-x+1-y=7\]
B.	\[~1-x+0-y=7\]
C.	\[~0-x+1-y=7\]
D.	None of these
Answer» C. \[~0-x+1-y=7\]

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The equation\[x=7\]in two variables, can be written as ____.

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