Firstly, expand the equation.
[tex]2(x + 3) = 4(x - 1) \\ 2x + 6 = 4x - 4[/tex]
Next, move the variable x to the left and all the constant to the right.
[tex]2x + 6 = 4x - 4 \\ 2x - 4x = - 4 - 6 \\ - 2x = - 10[/tex]
Then, solve for x.
[tex] - 2x = - 10 \\ x = \frac{ - 10}{ - 2} \\ x = 5[/tex]