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GMAT Inequalities is a high-frequency topic in GMAT Quant, but many students struggle because the concepts behave differently from standard algebra. Understanding the right rules, patterns, and edge cases can significantly improve both speed and accuracy.- May 06
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playthegame
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11 Feb 2024, 20:22
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that is correct
x = x
that means it has infinite solutions
so the line ax - x = ab
x = x
that means it has infinite solutions
so the line ax - x = ab
playthegame
Johnson Moderator
Joined: 19 Jan 2024
Last visit: 28 Mar 2025
Posts: 420
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11 Feb 2024, 20:23
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or you can think of two lines interesting
x/a
and x-b
those are two lines
the slope of x/a is 1/a
and the second line is x-b
meaning the y intercept of the line is -b
now if b takes a value other than 0 then there is only one solution
Meaning the lines intersect at one point
so for many solutions the two lines have to be one on top of the other
and that is possible only when a = 1
and b=0
does this help?
x/a
and x-b
those are two lines
the slope of x/a is 1/a
and the second line is x-b
meaning the y intercept of the line is -b
now if b takes a value other than 0 then there is only one solution
Meaning the lines intersect at one point
so for many solutions the two lines have to be one on top of the other
and that is possible only when a = 1
and b=0
does this help?
