I think it is important because you need to know it when you get older.
Replace the variables with the correct values and calculate using the order of operations
by farting
order of operations
order of operations
Replace the variables with the given values. Then you calculate using the order of operations.
the result is evaluate expression or even better Unknown
Algebraic expressions can be simplified by combining together like terms but there are no solution because they don't contain equality signs
432-2p evaluate expressions = 430
To Evaluate expressions using the order of operations where there are fraction bars, simplify the top and bottom first, then divide.
Replace each variables in the algebraic expression by its [known] value and calculate the value (ie evaluate) of the algebraic expression.
Simplifying an expression is getting rid of any brackets or parentheses, performing as many operations as you can - including combining like terms. To evaluate an expression you would substitute the numerical values of all the variables, carry out all the operations (addition, multiplication etc) in the expression to reach the answer - the numerical value of the expression.
To find the value of an algebraic expression is to evaluate it.