Question

Given f(x)=7x-6 and g(x)=3x what is f(3) - g(2)?

Answer 1

this is what I got
7(3)-6=15 3(2)=6
15-6=9

Answer 2

first, you substitute a 3 everywhere you see an x in the equation for f(x) and substitute a 2 for anywhere you see an x in equation g(x), then you subtract the first from the second. let me work it out and see if you're correct...

Answer 3

that's right!

Answer 4

cool thanks :)