Answer:
The expression in the question is given below as
[tex]-2x+3y-5x—8y+9y[/tex]Step 1:
Collect the similar terms and then add and substract them
Similar terms are ( -2x and -5x)
The similar terms also are (+3y ,-8y +9y)
By rearranging the terms, we will have
[tex]\begin{gathered} -2x+3y-5x—8y+9y \\ =-2x-5x+3y-8y+9y \end{gathered}[/tex]Step 2:
By simplifying the terms, we will have
[tex]\begin{gathered} -2x-5x+3y-8y+9y \\ =-7x-5y+9y \\ =-7x+4y \end{gathered}[/tex]Hence,
The final answer = -7x +4y
