Three lines between two equations means that there is an identity present. This means that whatever numbers you put into the equation it will always equal the equation on the other side.
Expression has no answer. a equation has an answer
an equation has an equals sign.
An expression has no equal sign whereas an equation does have an equal sign
Identity equation
Identity: An equation satisfied by every number that is a meaningful replacement for the variable. Example: 3(X+1)=3X+3Conditional Equation: An equation that is satisfied by some number but not others, such as 2X=4
Three lines between two equations means that there is an identity present. This means that whatever numbers you put into the equation it will always equal the equation on the other side.
Expression has no answer. a equation has an answer
An identity equation has infinite solutions.
An equation can lead to a solution.
an equation has an equals sign.
The difference between substitution and transposition is that in:Subtitution:each letter retains its position but changes its identity,Transposition:each letter retains its identity but changes its position.
An identity is true for all values of the variable whereas an equation is true for only a finite number of values.For example,Identity: (x + 2)3 = x3 + 6x2 + 12x + 27 is true, whatever the value of x.ButEquation: x3 - x = 0 is true only when x = -1, 0 or 1.
Root means solution in this context.
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It is any equation which is not an identity.
An equation has an equal = sign whereas an expression does not.