solve for x.\nx - x + 2x + x = 18\nx =

Explanation:

Step1: Combine like terms

$$x - x+2x + x=(1 - 1+2 + 1)x=3x$$ The equation becomes $3x = 18$.

Step2: Solve for $x$

Divide both sides of the equation $3x = 18$ by $3$. $$x=\frac{18}{3}$$

Answer:

$6$