Evaluating Expressions
To evaluate an expression, plug in the specific values for the variables and simplify.
Example
For x=2, the expression 3x+5 evaluates to 3*2+5=11.
For x=2 and y=1, the expression xy/(x+y) evaluates to 2*1/(2+1)=2/3.
For x=2, the expression 4yx/(y+x) evaluates to 8y/(y+2).
Remember
After evaluation the expression does not contain the variable in any form.
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