4 over 5 x + 4 over 3 = 2x

[mcda0706]

4 over 5 x + 4 over 3 = 2x

I can't find x

 

[JeffM]

I can't find x

What have you tried? We can't tell where you are stuck if you show no work.

 

[Quaid]

4 over 5 x + 4 over 3 = 2x

can't find x

Hi McDa:

Here's a couple hints. (I have no idea what you already understand. Please check out our posting guidelines.)

Express the Natural number 3 in Rational form 3/1.

\(\displaystyle \dfrac{\frac{4}{5x + 4}}{\frac{3}{1}} = 2x\)

Regarding the left-hand side above, have you learned the property that says we may multiply by the reciprocal of 3/1, instead of dividing by 3/1?

Cheers :cool:

 

[stapel]

4 over 5 x + 4 over 3 = 2x

I can't find x

When you say that you "can't find x", you mean that the instructions told you to solve the equation, and that you are having trouble finding the value(s) of x. First, though, a formatting issue. Another poster guessed your meaning as:

\(\displaystyle \dfrac{\frac{4}{5x + 4}}{\frac{3}{1}} = 2x\)

Did this poster correctly guess what you meant? Or is the left-hand side of the equation any one of these?

. . . . .\(\displaystyle \dfrac{4}{5x}\, +\, \dfrac{4}{3}\)

. . . . .\(\displaystyle \left(\dfrac{4}{5}\right)\left(\dfrac{x\, +\, 4}{3}\right)\)

. . . . .\(\displaystyle \dfrac{4}{5}x\, +\, \dfrac{4}{3}\)

When you reply, please show your efforts so far. Thank you!