7×

7× is a symbol that can represent multiplication by the number seven. In mathematical contexts, it is often seen as 7x or 7 * x, where 'x' is a variable. This notation signifies that the value of 'x' should be multiplied by seven. For example, if x = 3, then 7× would equal 21.

The symbol "×" itself is the multiplication sign, commonly used in arithmetic. When written as "7×", it explicitly indicates the operation of multiplication. While the use of a dot (7⋅x) or simply writing the number next to the variable (7x) are also common notations for multiplication, the "7×" form is clear and unambiguous.

In programming languages, the asterisk symbol '*' is typically used to denote multiplication, so 7× would be written as 7*x. However, in written mathematics, especially in elementary education, the "×" symbol is frequently employed. It is a fundamental concept in algebra and arithmetic, forming the basis for many calculations and problem-solving techniques. The concept of multiplying by seven is consistent across different number systems and mathematical fields.