SOLUTION: Explain how we evaluate an algebraic expression for given values of the variables. How would we evaluate the expression "3x - 4y + 9" when x = 2 and y = 5? thank you.

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Question 182546: Explain how we evaluate an algebraic expression for given values of the variables. How would we evaluate the expression "3x - 4y + 9" when x = 2 and y = 5?
thank you.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Explain how we evaluate an algebraic expression for given values of the variables. How would we evaluate the expression
"3x - 4y + 9" when x = 2 and y = 5?
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Put the numbers in place of the letters.
3*2 - 4*5 + 9
6 - 20 + 9
15 - 20
-5
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Cheers,
Stan H.