Answer:
-733.13
Step-by-step explanation:
Take absolute value of each number
(add absolute value bars to show what you're doing)
-734.8 = 734.8
-1.67 = 1.67
Then do regular subtraction
734.8 - 1.67 = 733.13
Then put back the negative symbol in front and you have your answer
-733.13
