Step-by-step explanation:
[tex]3x + 6 - x = 6x - 10[/tex]
Collect like terms and simplify
[tex]3x - x - 6x = - 10 - 6 \\ - 4x = - 16[/tex]
Divide both sides of the equation by -4
[tex] \frac{ - 4x}{ - 4} = \frac{ - 16}{ - 4} [/tex]
Simplify
[tex]x = 4[/tex]