(2/7)r + 2r = (1/2)r + (17/2)
Solve for r.

- anonymous

(2/7)r + 2r = (1/2)r + (17/2)
Solve for r.

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- anonymous

I'm not really sure where to start :(

- anonymous

ok, ill help,

- anonymous

future warning, i might suddenly leave, but thats because my cp froze. sorry!

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## More answers

- OakTree

I'll help then.

- anonymous

That's okay :) I apprciate the help

- anonymous

ok, oaktree, go right ahead.

- OakTree

So, first you want to multiply each term by 2 to get rid of the fractions.

- OakTree

You get 4/7r+4r=r+17

- OakTree

Then multiply each term by 7 to get rid of the other fraction

- anonymous

Oh! I see it's about getting rid of the fractions?

- OakTree

And you get 4r+28r=7r+119

- OakTree

No, it just makes it easier to solve.

- anonymous

not exactly, but its helpful to simplify the, your goal is to isolate the r

- anonymous

to simplify them*

- OakTree

So then you can simplify and get 25r=119

- anonymous

Oh! That makes sense. My professor kept telling me to multiply everything by 14

- OakTree

That also works because it is really doing both at once, but it's simpler to do them in two steps to prevent mistakes.

- OakTree

From 25r=119, you can easily get r=119/25.

- anonymous

That's where I got confused! Thank you both sooo much!

- OakTree

Which I don't believe can be simplified.

- OakTree

So that's your final answer.

- OakTree

You're welcome!

- OakTree

Anything else I missed, mathfreak?

- OakTree

You O.K. there?

- anonymous

oaktree, is that right? mustn't you multiply it to the other side as well( simple an important rule, you can do something to one side of the equation, as long as you do the same to the other side.)

- OakTree

What do you mean?

- OakTree

Multiply what?

- OakTree

If you mean the 2 and the 7, I did multiply both sides. Check my equation, maybe I messed it up somewhere.

- anonymous

ya, i noticed that. did you inform her about it?

- anonymous

sorry, this site crashes my cp,

- anonymous

Yeah I saw it.

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