Answer:
v=8
Step-by-step explanation:
Let's solve your equation step-by-step.
16v−9v=56
Step 1: Simplify both sides of the equation.
16v−9v=56
16v+−9v=56
(16v+−9v)=56(Combine Like Terms)
7v=56
7v=56
Step 2: Divide both sides by 7.
7v
7
=
56
7
v=8
hope this helps!
 
        
                    
             
        
        
        
Answer:
-8.8
Step-by-step explanation:
combine terms on right side of equal sign(50)
know your equation is -5v+6=50
subtract 6 from both sides so you know have -5v=44
then divide both sides by negative five so know you have v=-8.8
(plug in -8.8 to check)
 
        
                    
             
        
        
        
The answer would be 8x+ 12 - 7x or 20x - 7x
        
                    
             
        
        
        
 Answer:
A) 5x-7y=58
B) y=-x+2  we rearrange B) into
B) x + y = 2  then we multiply B) by -5
B) -5x -5y = -10  adding this to A)
A) 5x -7y = 58  we get
-12y = 48
y = -4
B) x + y = 2
x = 2 +4
x = 6
Step-by-step explanation:
 
        
             
        
        
        
Answer:
cos x ≠ 0 ⇔ x ≠  ; k ∈ N
 ; k ∈ N

<=> cos²x + sin²x = 1
⇔ 1 = 1
=> x =  { R \ (pi/2 + k.pi); k ∈ N}
Step-by-step explanation: