You can write 2X, where X is the length of the string.
The algebraic expression is 2m+6
(2x)+3
eight less than twice a number
3>2x
The corresponding expression would be 2x - 6 = 4.
The algebraic expression is 2m+6
2n
2b
2z
It is simply: 2x
(10)(2x)
3 x 2 = 6
(2x)+3
p+2d
2X-6
2w - 10
As an algebraic expression it is: 2x-9