Question

Evaluate the expression – 4a – 5b – 9 for a = 3 and b = –2

Answer 1

just plug in what the variable is and then do the math

Answer 2

i need help i dont know how

Answer 3

im only 11 years old

Answer 4

okay, well first you look at all the variables, and the problem is giving you what a and b are. a is 3 and b is -2.

so you plug that into the equation wherever you see that there is a variable

then you calculate the equation from left to right, like reading a book

Answer 5

i just need the answer please im 11 years old and dont want to learn this

Answer 6

okay, then you're on your own.