Answer:
z = 21
Step-by-step explanation:
z-6=15 
z = 15 + 6
z = 21
hope it helps!
 
        
                    
             
        
        
        
Answer:
4 x minus 5 y = negative 5 and 3 x + 10 y = negative 20
Step-by-step explanation:
The equations
4 x - 5 y = 5 (red)
3 x + 10 y = 20 (blue)
4 x - 5 y = -5 (green)
3 x + 10 y = -20 (purple)
are shown in the picture attached. As we can see there, the point (–2.7, –1.2) is on the intersection of the purple and green lines. Therefore is the solution of the system:
4 x - 5 y = -5 
3 x + 10 y = -20 
 
        
                    
             
        
        
        
Answer:
n= -3 or in exact form: N= - log27/log3
Step-by-step explanation:
 
        
             
        
        
        
Answer:
i mean ill take it
Step-by-step explanation:
 
        
                    
             
        
        
        
Both x and y equal 2. 
2•2=4 + 2•2=4
4+4=8 
2+2=4