Yes the answer is c. z=3 or z=-9
        
             
        
        
        
Do them backwards and you will get the answer
        
                    
             
        
        
        
Answer:
y=-2x+3
Step-by-step explanation:
y+2x=3
y=3-2x
y=-2x+3
y=mx+b
where m=-2 and b=3.
So the slope for this function is -2 and the y-intercept is 3. You can easily graph this function.
 
        
             
        
        
        
Answer:
Your answer 
420 were chocolate 
Mark it as Brainlist. Follow me for more answer.
Step-by-step explanation: