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 January 15th, 2017, 09:47 AM #1 Newbie   Joined: Jan 2017 From: Nigeria Posts: 1 Thanks: 0 Linear inequalities X is a whole number.if three quarters of x is subtracted from 1,the result is always greater than 0.
 January 15th, 2017, 11:17 AM #2 Math Team   Joined: Jul 2011 From: Texas Posts: 2,546 Thanks: 1259 What if $x = 1$, a whole number (last time I checked) ... ? Thanks from Joppy
 January 15th, 2017, 08:15 PM #3 Global Moderator   Joined: Dec 2006 Posts: 17,160 Thanks: 1284 1 - (3/4)x > 0 is equivalent to x < 4/3.
February 16th, 2017, 05:19 AM   #4
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Quote:
 Originally Posted by skeeter What if $x = 1$, a whole number (last time I checked) ... ?
Then $1- (3/4)x= 1- 3/4= 1/4> 0$. I don't see your point.

But if $x= 2$ then $1- (3/4)x= 1- 3/2= -1/2$. Perhaps that was what you meant?

 February 23rd, 2017, 05:43 AM #5 Math Team   Joined: Jan 2015 From: Alabama Posts: 2,484 Thanks: 628 In any case, the statement "X is a whole number. if three quarters of x is subtracted from 1,the result is always greater than 0" is not always true. But there was no question asked in the original post. Chriskwajaffa, was the problem to determine values of x such that the statement is true? If so, $1- (3/4)x> 0$ is the same as $1> (3/4)x$. Multiply on both sides by the positive number 4/3 (do you see why the fact that it is positive is important?) to get $4/3> x$. So the statement is true for all x less than 4/3.

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