In order to simplify this expression, first we need to use the distributive property of multiplication:
[tex]a(b+c)=a\cdot b+a\cdot c_{}[/tex]After that, we will add the like terms.
So we have:
[tex]\begin{gathered} -3w-5(-3x+2w)+6x_{} \\ =-3w-5\cdot(-3x)+(-5)\cdot2w+6x \\ =-3w+15x-10w+6x \\ =(-3w-10w)+(15x+6x)_{} \\ =-13w+21x \end{gathered}[/tex]
