First, move all terms containing a to the left, all other terms to the right.
Add '2b' to each side of the equation.4a + -2b + 2b = 16 + 2b
Combine like terms: -2b + 2b = 04a + 0 = 16 + 2b4a = 16 + 2b
Divide each side by '4'.a = 4 + 0.5b
Answer 
= 4 + 0.5b
Happy studying ^-^
        
             
        
        
        
Answer:

Step-by-step explanation:


 
        
             
        
        
        
Since x represents the length (in meters), the width, which is 7 meters greater, is x +7. The product of these dimensions is the area (in square meters):
  x(x +7) = 170
In standard form, the quadratic is ...
  x² +7x -170 = 0
        
             
        
        
        
ANSWER: 
We know that, 
Speed = Distance/Time
So, Time taken = 20kmh-¹/160km
 
        
             
        
        
        
Answer:
37
Step-by-step explanation: