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If x is an integer and y = –3x + 7, what is the least value of x ... ...

If x is an integer and y = –3x + 7, what is the least value of x for which y is less than 1?
(A)    1
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Nova Math - Diagnostic/Review:

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If x is an integer and y = –3x + 7, what is the least value of x ... ... 
Posted: 08/21/2015 08:58
I solved this question using substitution since I knew x was an integer: I tried x=1, then x=2, then x=3, did the quick arithmetic and got the answer.
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