# Algebra Question

1. Oct 25, 2006

### Johnnycab

I was asked to solve for x,
i tried cross multiplying x by 1.5 and 4.8 by 1.5, the moving my 2.18x over to my left side.

(x-4.8)/1.5=2.18x
1.5x-7.2=2.18x
1.5x-2.18x=7.2
-.68x=7.2
-.68/-.68=7.2/.-.68
x=10.5

Did i do this correctly

2. Oct 25, 2006

no you did not do it correctly

$$\frac{x-4.8}{1.5} = 2.18x$$

$$x-4.8 = ?$$

$$x = ?$$

3. Oct 25, 2006

### Office_Shredder

Staff Emeritus
No. (x-4.8)/1.5 does NOT equal 1.5x -7.2

What you would do is multiply both sides by 1.5:

(x-4.8)/1.5=2.18x
1.5*(x-4.8)/1.5=2.18x*1.5
x-4.8=3.27x

4. Oct 25, 2006

### L²Cc

what software do you use?

on a slight tangent, what software do you use to type all these mathematical notations. I'm putting together a math portfolio and I'm using word which is not very accurate in terms of mathematical notation........thank you. plz reply asap!

5. Oct 25, 2006

its called LaTex. you can type it in the forums using [tex ] [/tex ] (with no spaces). You can also download MikTeX if you have Windows to get LaTex.

6. Oct 25, 2006

### L²Cc

oh ok...and can I use latex as an application, as in I can print the doc once I'm done...it is not html?

7. Oct 25, 2006

no, its not html. you can print the document once

8. Oct 25, 2006

### L²Cc

oh all right thanks for the fast reply.

9. Oct 26, 2006

### Johnnycab

thanks i see what i didnt do