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Anonymous
To evaluate a variable expression, replace all the variables with numbers and simplify the resulting numerical expression.
3m for m = 9
3(9)=27
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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
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.
Two expressions are "equivalent" if they have the same result for any values of the variable or variables.
Expressions never have equality signs
An equation if both expressions are equal
evaluate
a set of rules used to evaluate expressions with more than one operation is the
Substitute the value found back into the equation, evaluate the expressions and see if the resulting equation is true.
An expression with a variable.
by farting
These two are both similar because they are both expressions.