130 exceeds two times a number by 70, what is the number?

130 exceeds two times a number by 70. Find what is the number?
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If the number is n then twice the number is 2n. 130 is bigger than 2n by 70 so 130-2n=70, 130-70=2n, 60=2n so n=30, the number is 30.

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