Answer:
[tex]2y - 5w \\ here \\ \: y = - 3 \\ w = - 1 \\ then \: = > 2 \times (- 3) - 5 \times ( - 1) \\ = 2 \times - 3 - 5 \times - 1 \\ = - 6 + 5 \\ = - 1 \\ thank \: you[/tex]
[tex] = > 2y - 5w[/tex]
[tex] = > 2( - 3) - 5( - 1)[/tex]
[tex] = > - 6 + 1[/tex]
[tex] = > - 1[/tex]