Assume that an int variable x has already been declared,. write an expression whose value is the last (rightmost) digit of x.

The last digit is in the tens place.assuming java: int expression = x - (x/10) * 10; because java truncates decimal, the decimal will be truncated after dividing by 10. for example, if  int x = 5134then x/10 = 513then x/10 * 10 = 5130so 5134 - 5130 = 4, which is last digit.