27
1+(18-7x)=-9
18-7x=-10
-7x=-28
x=4
12 and 28
7*(2*x - 16), or maybe 7*| 2*x - 16 |. It depends on if you want to keep the 'difference' to be a positive number.
15
14
pnis
7/ 3/
12 and 28
If seven times a number results in 35, then six times a number would be five less.
7*(2*x - 16), or maybe 7*| 2*x - 16 |. It depends on if you want to keep the 'difference' to be a positive number.
Eleven
15
14
pnis
It is impossible to tell without knowing what the number being multiplied by four is.
18
The difference is ten times the number.
2n - 3