The algebraic expression for three more than a number is:
X + 3
6 more than a number c
twice a number n
3x +3
3+10x
3x + 7
x+29
X = " a number " X + 20
The algebraic expression for "five more than three times some number" is 3x + 5, where x represents the unknown number.
3x +3
3+10x
a common factor
3x + 7
n = number. (3/7)n + 12 ========
3+ 6/n
One more than the square of x
Let the number be a a + 8
The algebraic expression would be 8n + 3, where n represents the unknown number.
x+29
X = " a number " X + 20