If someone tells me things, I was reading how to send a currency balance in metamask to coinbase, they explain that you can make the transaction of a direct currency to coinbase etherum, also the operation from metamask is successful, then where is my balance if it’s all correct in metamask they don’t say anything to pass to etherum in metamask and then send it as I fix this
Welcome to the MetaMask Community @icl!! 
Apologies, but I’m not quite sure what you’re asking. Are you saying that you sent tokens from your MetaMask wallet to your Coinbase wallet, but the tokens do not appear in your Coinbase wallet?
If this is the case, please contact Coinbase support for assistance in locating your tokens.