When two expressions are equal to each other they form an equation.
An equation consists of two expressions that equal each other.
It means 4 times "m" - in other words, 4 multiplied with whatever value the variable "m" happens to have.
It is an algebraic expression, if there are numbers and variables. For example: 2x + 2 = 4x(7-5) 20-29 = -9/3x If there are ONLY numbers and NO variables, it is called an arithmetic expression. For example: 3+3+3+3 = 4+4+4 2+6 = 4+4
A reciprocal (not reciprical) or multiplicative-inverse is THE relationship between two expressions factored from unity. The product of a reciprocal pair of expressions (quantities or numbers) is equal to 1. For example; 1/5 and 5 are reciprocals of each other, they multiply to equal 1. Zero (zed) does not have a reciprocal.
In mathematics, such expressions indicate that the value of the expression to the left of the equal sign has the same value as the expression to the right of the equal sign. In some cases, it can also be interpreted to mean that the expression on one side of the equal sign can be used in place of the expression on the other side of the equal sign (say in manipulating algebraic expressions). In computer languages, the equal sign is sometimes also used to indicate that the value of the expression to the right of the equal sign is to be transferred to the location indicated by the expression to the left of the equal sign. The expression to the left of the equal sign is usually a single variable that represents a memory location.
There is only one extra rule to algebraic expressions over normal numerical expressions: when two letters are next to each other it means multiply them together: ab means a times b The multiplication symbol is omitted as it looks too much like the letter 'x' can could be confused as such.
An equation.
When two expressions are equal to each other they form an equation.
porportion
An equation consists of two expressions that equal each other.
Two expressions that equal each other is an equation
It is formed by two expressions that equal each other
It means 4 times "m" - in other words, 4 multiplied with whatever value the variable "m" happens to have.
an equation
They are formed by two expressions that are equal to each other.
an equation