Algebra basics (ASL)
Evaluating expressions with two variables
We've already evaluated expressions with one variable. Now it's time to do it with two variables.
How to evaluate an expression with two variables
Let's say we want to evaluate the expression . Well, first we need to know the values of and . For example, to evaluate the expression when and , we just replace with and with :
So, the expression equals when and .
Now, let's practice
Evaluate when and .
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