Explain - Speech or Presentation Example

Equation vs expression: The biggest difference between an equation and an expression is that the former is a sentence whereas the latter is a phrase.An equation is solved whereas an expression is simplified. An equation necessarily contains a relation symbol which is non-existent in an expression. The following is an example of an equation:8 = x – 3The following is an example of an expression:X is a number more than 4.An equation containing a variable can be both right and wrong depending upon the condition along with the equation.

For example, the equation 5 – x = 3 is true if and only if the value of x is 3. If not, the equation is false. As compared to thus, 5 – x = 5 – x is always true. These equations are known as identities and are always true. An equation is solved in order to determine such values for the variable which make the equation true. Thus, an equation can be solved for a variable whereas an expression is not solved for a variable. An expression can only be simplified. Wherever there is a sign of equality, solution is possible, otherwise not!

Concluding all that has been said above, two expressions are connected with each other through a sign of equality in an equation which can thus, wither be true or false. Unlike an equation, an expression is a standard phrase that does not have to be true or false, though an expression contains a numerical value.