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?

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Question 196550: 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?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
3x-4y+9
If x=2 & y=5 then:
3*2-4*5+9=6-20+9=15-20=-5 ans.