Youngkwon C. answered 12/09/15
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Knowledgeable and patient tutor with a Ph.D. in Electrical Eng.
Hi Angel,
Let x denote the number in question, twice the number is 2x.
The sum of twice the number and three is 2x + 3.
4 times the sum of twice the number and three is 4(2x + 3).
Then, the whole sentence can be expressed as
10 ≤ 4(2x + 3)