Write an algebraic expression to represent $\frac{1}{8}$18 of a number. Let the variable $x$x represent the number.

The sum of $x$x and $10$10 is $25$25.

Construct an equation and find the value of $x$x.

The difference between $x$x and $18$18 is $27$27.

Construct an equation and find the value of $x$x given that $x>18$x>18.

Determine whether the following statement is true or false.

The algebraic expression for "$2$2 less than a number" is the same as the algebraic expression for "a number decreased by $2$2."