Answer:
-4m-5
Step-by-step explanation:
The trick here is knowing not to combine terms with variables with terms that don't have variables.
[tex]m-7-(5m-2)\\m-7-5m+2\\m-5m-7+2\\-4m-5[/tex]
So the answer is -4m-5
[tex](m-7)-(5m-2)\\\\=m-7-5m-(-2)\\\\=m-7-5m+2\qquad\text{combine like terms}\\\\=(m-5m)+(-7+2)\\\\=-4m-5[/tex]
