The algebraic expression for three more than a number is: X + 3
twice a number can be 2x and six less than it is 2x-6.
2X + 9 = Y or X = (Y - 9) / 2 where X is the number and Y is the result
The corresponding expression would be 2x - 6 = 4.
The algebraic expression is 2m+6
10.Twice of 3 or 3x2= 64 more than 6 or 4+6 = 10
6+ 2n
6
The number is 18 because 2*(18)+6 = 42
18 and 6
The algebraic expression for three more than a number is: X + 3
6+2x=18 x=6
*Write and it's 2x+6 x being the number
2x-6
5x + 18 = 2x - 6 x = -8
It is 2n + 6
2m + 6