If a bird flies 100 yards , then flies back 50 yards, then goes 60 yards back, how far away did the bird fly?

The bird will have flown 110 yards away in total.

since we know that the two functions are equal, f (x) = g

(x), therefore when we equate the two equations the result should be similar to

3x = x – 4:

a. f(x) = 3x, g(x) = x – 4

equating the two functions:

3x = x – 4             (correct)

so we now got our answer (a)

no solution exists the way you wrote the equation.