Sagot :
[tex]\huge\text{Hey there!}[/tex]
[tex]\large\boxed{\mathsf{x - 3y^3 + 3x^3 - 5x - x^3 - x - 2x^3}}[/tex]
[tex]\large\text{COMBINE the LIKE TERMS}[/tex]
[tex]\large\boxed{\mathsf{= (3x^3 - x^3 - 2x^3) + (-3y^3) + (x - 5x - x)}}[/tex]
[tex]\large\boxed{\mathsf{= 3x^3 - x^3 - 2x^3 - 3y^3 + x - 5x - x}}[/tex]
[tex]\large\boxed{\mathsf{= -3y^3 - 5x}}[/tex]
[tex]\huge\boxed{\rm{Therefore, your \ answer \ is: -3y^3 - 5x}}[/tex][tex]\huge\checkmark[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]