Level
pending

**\(1)\)**The first series is **\(7,12,35,174,x\)**,what is the value of **\(x\)**?

**\(2)\)**The second series(a bit simple) is **\(484,612,624,672,y\)**,what is the value of **\(y\)**?

What is the value of **\(x-y\)**?

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