Answer:
t>-4
I’m not sure if this is right
 
        
             
        
        
        
Answer:
 
Step-by-step explanation:
Hello,
let's find a and b reals so that


we identify the terms in 
    9 = 3a
we identify the terms in x
    -18 = 3b + a
we identify the constant terms
    -7 = b
so ti goes with a = 9/3 = 3, b = -7
so we can write

so 
hope this helps
 
        
             
        
        
        
Answer:

Step-by-step explanation:

Hope this helps!
 
        
                    
             
        
        
        
-1-4x+7x=1x+4x
-1-4x+7x=1x+4x
-1+-4x+7x=x+4x
(-4x+7x)+(-1)=(x+4x)
3x+-1=5x
3x-1=5x
3x-1-5x=5x-5x
-2x-1=0
-2x-1+1=0+1
-2x=1
-2x/-2=1/2
x=-1/2
        
             
        
        
        
The answer probably would be this 5ab-5ac=d