Answer:
-4.25x - 12.4
Explanation:
(-0.75x - 5)-(3.5x + 7.4)
Remove parenthesis first
0.75x - 5 - (3.5x + 7.4)
Then -(3.5x + 7.4): -3.5x - 7.4
-0.75 - 5 - 3.5x -7.4
Now simplify -0.75x - 5 - 3.5x - 7.4 which is -4.25x - 12.4
Then you get the answer aka -4.25x - 12.4