7
5A-2
3n-30
4
Let the number be x and so the expression is: 4x -7
7
5A-2
To write 7 less than 2 times a number, you would first multiply the number by 2. This gives you 2x. Then, you would subtract 7 from the result of 2 times the number: 2x - 7. This expression represents the value of 7 less than 2 times a number.
5n < 65
It is N - 55.
5x-4
3n-30
==> [ 3x - 8 ]
4
4n-5 (Which is four times a number minus 5)
Let the number be x and so the expression is: 4x -7
4p - 9 > 15