Step-by-step explanation: what is the question
 
        
             
        
        
        
I believe you combine the first and last terms first because they have the same denominator
        
                    
             
        
        
        
1)
7/6d+4/3=-1/3
7/6d=-5/3
d=-5/3×6/7
d=-10/7
2)
5 1/2-u=9/4
11/2-u=9/4
22/4-u=9/4
13/4=u
3 1/4=u
3)
-m-7/8=-10
-m-7/8=-80/8
-m=-73/8
m=73/8 or 9 1/8
4)
2/7=4/5+9q
10/35=28/35+9q
-18/35=9q
q=-18/35×1/9
q=-2/35. Hope it help!
        
             
        
        
        
Answer:
The formula for the volume of a sphere is V = 4/3 πr³
Step-by-step explanation: