Example Of Addition Of Algebraic Expression. Addition of an algebraic expression. For example, 4xy + 9, in this expression x and y are variables whereas 4 and 9 are constants.
Here 14 is the constant whereas x and y are variables of which 9 and 23 are the numerical coefficients respectively. Note down the like terms and then find the sum of the numerical coefficients of all terms. An algebraic symbol lacks the equal (=) sign.