Question

If x>7 then x+2>9 is true?

(a) True

(b) False

I have been asked this question in an international level competition.

Origin of the question is Algebraic Solutions of Linear Inequalities in One Variable and their Graphical Representation in chapter Linear Inequalities of Mathematics – Class 11

Answer 1

Right answer is (a) True

The best explanation: We can add equal number on both sides of inequality so

if x>7 then x+2>7+2 => x+2>9