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?

Question

anonymous · Answer

You have to replace the values, like this
3x - 4y + 9
of x = 2 and y = 5, then
3*2 - 4*5 + 9
6 - 20 + 9
Can you do that now? Is that what you mean?

anonymous · Answer

yes, I guess I was write, do you know how to do t
he questions at the top?

anonymous · Answer

what questions?

anonymous · Answer

oh it didn't show lol

anonymous · Answer

lol ok. just call me if you need any help