Associated Topics || Dr. Math Home || Search Dr. Math

### Solving an Equation with Fractions

```
Date: 11/27/95 at 19:5:53
Subject: math
From: Sani Salles

How do I do this exercise?  It is:

X+5 = X-4
---   ---
4     2
-
5
```

```
Date: 12/4/95 at 1:22:28
From: Doctor Ken
Subject: Re: math

Hello!

The most important thing to remember in doing a problem like this is to
only try to focus on one part at a time.  You can't do the whole problem
at once!

So we have this:

x + 5     x - 4
-----  =  -----
4        2/5

The first thing I think I'd do is get rid of that 2/5 by multiplying the
right side of the equation by 5/5.  So we have

x + 5     x - 4    5
-----  =  ----- * ---
4        2/5     5

5(x - 4)
= --------
2

5x - 20
= -------
2

Now you could cross-multiply to finish it off!

-Doctor Ken,  The Geometry Forum
```
Associated Topics:
Middle School Algebra

Search the Dr. Math Library:

 Find items containing (put spaces between keywords):   Click only once for faster results: [ Choose "whole words" when searching for a word like age.] all keywords, in any order at least one, that exact phrase parts of words whole words

Submit your own question to Dr. Math
Math Forum Home || Math Library || Quick Reference || Math Forum Search