\(4(1+3x)+4x= -18+5x\)
First, you develop, so you get:
\(4+12x+4x = -18+5x\)
Then, you put known numbers (numbers without x) apart, and unknown numbers (numbers with x) apart. And remember, moving from a side to another change the sign of the Number (Positive become negative, and negative become positive) so you get:
\(12x+4x-5x = -18-4\)
Now, you do the calculations, you get:
\(11x = -22\)
Then, you move 11 to the other side. And since it was in a multiplication equation, it become a division. So you get:
\(x = - \frac{22}{11}\)
\(x = -2\)
Hope this Helps! :D
