2x-3=x+2
answer x=5
2x+3
Let the number be x and so the expression is: 2x+3
This is an algebraic expression. It can be written as 3(2x + 4)
2n
If the number is represented by variable x, then twice the number is represented by 2x.
2(ab)
2x+3
Let the number be x and so the expression is: 2x+3
The algebraic expression for three more than a number is: X + 3
twice a number n is 2n plus 3 is + 3 → twice a number n plus 3 is 2n + 3.
This is an algebraic expression. It can be written as 3(2x + 4)
If you mean 2n+4, or 2n-4, that already is an algebraic expression. The idea might be to put it into words. 2n+4 is twice n, increased by 4. Notice you need a comma because if you write twice n increased by 4 this is 2(n+4)
Let the unknown 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