To evaluate a variable expression, replace all the variables with numbers and simplify the resulting numerical expression.
3m for m = 9
3(9)=27
Basically the same way that you evaluate other types of expressions with variables: * You replace the variables by the value assigned to the variables. * Then you do the specified calculations.
432-2p evaluate expressions = 430
To determine which expressions are equivalent, you need to analyze their structure and simplify them if necessary. Equivalent expressions yield the same value for all variable inputs, so you can also substitute specific values to test for equality. If you provide the specific expressions in question, I can help you evaluate their equivalence.
It means that if you replace one variable with one of the numbers, and the other variable with the other numbers, and then evaluate the expressions on each side of the equations, the equalities will be true.
To evaluate expressions by substitution, first identify the variable(s) in the expression and determine their corresponding values. Replace each variable in the expression with its given value. Finally, perform the necessary arithmetic operations to simplify the expression and obtain the final result. For example, if the expression is (2x + 3) and (x = 4), substitute to get (2(4) + 3), which simplifies to (8 + 3 = 11).
Two expressions are "equivalent" if they have the same result for any values of the variable or variables.
An equation if both expressions are equal
Expressions never have equality signs
evaluate
Substitute the value found back into the equation, evaluate the expressions and see if the resulting equation is true.
a set of rules used to evaluate expressions with more than one operation is the
An expression with a variable.