Question

evaluate -13x + (-5y) - 8x - (-12y)

Answer 1

Answer:

$- 13x + ( - 5y) - 8x - ( - 12y) \\ \\ \\ = - 13x - 5y - 8x + 12y \\ \\ \\ = - 21x + 7y$

Answer 2

Answer:

-13x + (-5y) -8x - 1(-12y)

Combine like terms we get;

-21x + (-5y) -1(-12y)

Now,

Rearranging the terms we get;

-21x + (-5y) -1(-12y)

-21x -1 (-12y) + (-5y)

Hence , the solution is -21x -1 (-12y) + (-5y).