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2x+3
2x+15
Let the number be x and so the expression is: 2x+3
2n
If the number is represented by variable x, then twice the number is represented by 2x.
2x+3
2x+15
Let the number be x and so the expression is: 2x+3
2n
If the number is represented by variable x, then twice the number is represented by 2x.
2b
2z
40 + 2n
49+2x
6
15
|5n - 2n|