Hello! So, there is a rule that says if you are adding or subtracting something with a common denominator, you can put the numerators together and simplify. [tex]\:\frac{a}{c}\pm \frac{b}{c}=\frac{a\pm \:b}{c}[/tex] Which applying to your equation gives [tex]=\frac{x-2+4x-4}{6x^2+6x}[/tex]
which you then simplify to [tex]=\frac{5x-6}{6x^2+6x}[/tex]
