Question

If y(x) = 4x, what is x when y(x) = 4?

A. 1
B. 4
C. 2
D. 0

Answer 1

so first set up the problem.
4(x)=4

Answer 2

then divide 4 from both sides
4/4(x)=4/4
1(x)=1
or
x=1

Answer 3

hope that helped :-)