If x>7 then -x>-7 is ___________(a) possible(b) certainly false(c) certainly true(d) depend on xI have been asked this question during an online interview.My question is taken from Algebraic Solutions of Linear Inequalities in One Variable and their Graphical Representation in section Linear Inequalities of Mathematics – Class 11

If x>7 then -x>-7 is ___________(a) possible(b) certainly false(c) cer

1.	If x>7 then -x>-7 is ___________(a) possible(b) certainly false(c) certainly true(d) depend on xI have been asked this question during an online interview.My question is taken from Algebraic Solutions of Linear Inequalities in One Variable and their Graphical Representation in section Linear Inequalities of Mathematics – Class 11
Answer» Correct choice is (B) CERTAINLY false To explain I WOULD say: If we multiply by negative number on both sides of inequality then sign of inequality will change i.e. if x>7 then (-1) x < (-1)7 => -x<-7.

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