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Solve `5/12-5/6=x-3/2` .

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kim1246 | (Level 3) eNoter

Posted February 27, 2013 at 7:19 PM via iOS

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Solve `5/12-5/6=x-3/2` .

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justaguide | College Teacher | (Level 2) Distinguished Educator

Posted February 27, 2013 at 7:26 PM (Answer #1)

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The equation 5/12-5/6=x-3/2 has to be solved for x.

5/12-5/6=x-3/2

=> x = 5/12 - 5/6 + 3/2

=> x = 13/12

The solution of the equation 5/12-5/6=x-3/2 is x = 13/12

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Wilson2014 | eNotes Employee

Posted February 27, 2013 at 9:36 PM (Answer #2)

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The method to solving this problem is to isolate x first by adding `3/2` on both sides.

`5/12-5/6=x-3/2`  `=> 5/12-5/6+3/2 = x`

Then, in order to evaluate fractions that have a different denominator (value on the bottom of the fraction bar), we must find the denominators' lowest common multiple, which in this case is 12. 

`5/12-5/6+3/2 = x => 5/12-5/6*2/2+3/2*6/6 = x`

We can do these multiplications because it is essentially multiplying by 1 and does not change the values in the equation. The above equation becomes:

`5/12-10/12+18/12 = x`  which simplifies to `13/12 = x` 

Therefore, `x = 13/12`

 

 

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