Question

Evaluate the expression for a = –1 and b = 5.

5a – 7

Answer 1

is there supposed to be a b term in your problem ?

Answer 2

5(-1) -7
-5-7
-12
is the correct answer

Answer 3

I don't know.

Answer 4

well..if your problem has no b term, then Haseeb is correct...-12 is the answer

Answer 5

how do you get -12?

Answer 6

you sub -1 in for a
5a - 7
5(-1) - 7 -- distribute through the parenthesis
-5 - 7 -- add your negatives
-12 -- your answer

Answer 7

oh I get it. Thanks again

Answer 8

sure thing :)