To solve this equation, we will first distribute the terms on the left side of the equation:

18x + 4 - 4x(1) + 4x(4x) = -4(1) + -4(1) - -4(2x)

Simplify:

18x + 4 - 4x + 16x = -4 - 4 - 8x

Combine like terms:

30x + 4 = -8x - 8

Now, move all the x-terms to one side of the equation and all the constant terms to the other side:

30x + 8x = -8 - 8 - 4

Combine like terms:

38x = -20

Now, solve for x by dividing both sides by 38:

x = -20/38
x = -10/19

Therefore, the solution to the equation is x = -10/19.