SOLUTION: Solve this inequality to describe all possible values of x: {{{ 3/x > 4/x }}} I have not yet had an inequality with a variable on both sides, so am stuck. I have multipl

Algebra ->  Algebra  -> Inequalities -> SOLUTION: Solve this inequality to describe all possible values of x: {{{ 3/x > 4/x }}} I have not yet had an inequality with a variable on both sides, so am stuck. I have multipl      Log On

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Question 200540: Solve this inequality to describe all possible values of x:
+3%2Fx+%3E+4%2Fx+
I have not yet had an inequality with a variable on both sides, so am stuck. I have multiplied both sides by x but do not know where to go from here:
+3x+%3E+4x+ Am I on the right track?

Answer by jim_thompson5910(21667) About Me  (Show Source):
You can put this solution on YOUR website!
In this case, you can solve this problem the following way...


+3%2Fx+%3E+4%2Fx+ Start with the given inequality.


3x%3E4x Cross multiply


3x-4x%3E0 Subtract 4x from both sides.


-x%3E0 Combine like terms on the left side.


x%3C%280%29%2F%28-1%29 Divide both sides by -1 to isolate x. note: Remember, the inequality sign flips when we divide both sides by a negative number.


x%3C0 Reduce.


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Answer:

So the solution is x%3C0




So the answer in interval notation is


Also, the answer in set-builder notation is


Here's the graph of the solution set

drawing%28500%2C80%2C-10%2C+10%2C-10%2C+10%2C%0D%0Anumber_line%28+500%2C+-10%2C+10%29%2C%0D%0A%0D%0A%0D%0Aarrow%280%2C0%2C-10%2C0%29%2C%0D%0Aarrow%280%2C0.30%2C-10%2C0.30%29%2C%0D%0Aarrow%280%2C0.15%2C-10%2C0.15%29%2C%0D%0Aarrow%280%2C-0.15%2C-10%2C-0.15%29%2C%0D%0Aarrow%280%2C-0.30%2C-10%2C-0.30%29%2C%0D%0A%0D%0A%0D%0A%0D%0A%0D%0Acircle%280%2C0%2C0.3%29%2C%0D%0Acircle%280%2C0%2C0.3%29%2C%0D%0Acircle%280%2C0%2C0.3%29%2C%0D%0Acircle%280%2C0%2C0.3-0.02%29%0D%0A%29