Question

Subtract 5m-2 from m-7

Answer 1

-4m - 5

Explanation:

`(m-7)-(5m-2)\\\\=m-7-5m-(-2)\\\\=m-7-5m+2\qquad\text{combine like terms}\\\\=(m-5m)+(-7+2)\\\\=-4m-5`

Answer 2

-4m-5

Explanation:

The trick here is knowing not to combine terms with variables with terms that don't have variables.

`m-7-(5m-2)\\m-7-5m+2\\m-5m-7+2\\-4m-5`

So the answer is -4m-5