Question

u=2x-2, for x. This is a literal equation. How do I solve this?

Answer 1

In forder to solve for x, we have to isolate it on one side of the equation by following these steps:

1. add 2 on both sides:

u + 2 = 2x - 2 + 2

u + 2 = 2x + 0

u + 2 = 2x

2. Divide both sides by 2:

$\begin{gathered} \frac{u+2}{2}=\frac{2x}{2} \\ \frac{u+2}{2}=\frac{2}{2}\times x \\ \frac{u+2}{2}=1\times x \\ \frac{u+2}{2}=x \\ x=\frac{u+2}{2} \end{gathered}$

Then, the solution is x = (u+2)/2