Here you can keep your brain fit by solving math related problems and also earn [SBI](https://steemit.com/@steembasicincome) or sometimes other rewards by doing so.
The problems usually contain a mathematical equation that in my opinion is fun to solve or has an interesting solution.
I will also only choose problems that can be solved without additional tools(at least not if you can calculate basic stuff in your head), so don't grab your calculator, you won't need it.
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# Rules
#### No upvote, No resteem, No follow required!
#### I will give the SBI(s) randomly to any participants.
#### You have 4 days to solve it.
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# Problem
Today it's time for a normal equation again:
![Screenshot from 2019-11-02 21-58-19.png](https://cdn.steemitimages.com/DQmdEqTmV3bY8iot572M2d4QdYg77q31dP2nfQmHxBYt1Ro/Screenshot%20from%202019-11-02%2021-58-19.png)

#### Solve for x!

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To everyone who already participated in a past contest, come back today and try a new problem(tell me if you don't want to be tagged):
@addax @ajayyy @athunderstruck @bwar @contrabourdon @crokkon @fullcoverbetting @golddeck @heraclio @hokkaido @iampolite @kaeserotor @masoom @mmunited @mobi72 @mytechtrail @ninahaskin @onecent @rxhector @sidekickmatt @sparkesy43 @syalla @tonimontana @vote-transfer @zuerich

In case no one gets a result(which I doubt), I will give away the prize to anyone who comments.
 
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@contrabourdon sponsors my contests with 2 STEEM weekly.
You can support him by [using a witness vote on untersatz](https://v2.steemconnect.com/sign/account-witness-vote?witness=untersatz&approve=1), so he can further support this and other contests.