Answer:
that this 6+6 
Step-by-step explanation:
78+90 look than
 
        
                    
             
        
        
        
Answer: A and B
Explanation: I’ll use A as an example. When you multiply the bottom equation by -3/2, the equation becomes: -9x+6y=-3. Then, proceed to add the equations. Look at X and Y in both equations: do the Y variables in both equations equal to 0 when added together? Yes, because -6y+6y=0! Therefore, you can eliminate y in these two equations.
Hope that’s helps シ
        
             
        
        
        
The way i do it, is sort of like this :
Is 7 a factor of 42? 
  Is 5 a factor of 42? 
7 is a factor of 42. 
It must be in multiples of 7!
Therefore, we have 5 on the other side, which makes it 5 x 7 = 35
        
             
        
        
        
Answer:
The acceleration is 

Step-by-step explanation:
Use the equation of motion,

where u=0m/s is the initial speed, v=9m/s is the final speed and t=2 seconds is the time.
We substitute the values into the equation and solve for the acceleration, a 

This means that;

Divide both sides by 2 to get:


 
        
             
        
        
        
Answer:
y = 3/2 x - 9/4
Step-by-step explanation:
bring all the y's to one side.
4y = 6x-9
divide by 4 to isolate the y
y = 6/4x - 9/4
simplify
y = 3/2 x - 9/4