Answer:
7m + 5
Step-by-step explanation:
"Evaluate ( 12m + 1 ) - ( 5m - 4)" would be more direct.
First perform the indicated multiplication by '-1' as follows:
( 12m + 1 ) -5m + 4
Now combine like terms: 12m - 5m + 1 + 4 becomes 7m + 5
This is 'the difference between 12m + 1 and (5m - 4).'
