Answer: The answer is −4x−9.8
Step-by-step explanation:
−7x−9−−4.2+3x−5
The opposite of −4.2 is 4.2.
−7x−9+4.2+3x−5
Add −9 and 4.2 to get −4.8.
−7x−4.8+3x−5
Combine −7x and 3x to get −4x.
−4x−4.8−5
Subtract 5 from −4.8 to get −9.8.
−4x−9.8
Ps: I hope this is correct, hope it helps also have a great day.