Question

12 + 2x - x = 9x + 4Solve the x

Answer 1

$12+2x-x=9x+4$

To solve the x:

1. Combine like terms:

2x+x=3x

$12+3x=9x+4$

2. Substract in both sides of the equation 9x:

$\begin{gathered} 12+3x-9x=9x-9x+4 \\ 12-6x=4 \end{gathered}$

3. Substract 12 in both sides of the equation:

$\begin{gathered} 12-12-6x=4-12 \\ -6x=-8 \end{gathered}$

4. Divide both sides of the equation into -6:

$\begin{gathered} \frac{-6x}{-6}=\frac{-8}{-6} \\ \\ x=\frac{8}{6} \end{gathered}$

5. Simplify:

$x=\frac{4}{3}$