Answer:
1
Step-by-step explanation:
10 = 4x+6
-4x = -10+6
-4x = -4
x = -4/-4
x = 4/4
x = 1
 
        
             
        
        
        
1/6 = 2/12 because 12 is 2 times 6.
Multiply both numbers by 2 to get your answer:
5/6 = 10/12
        
             
        
        
        
Beautiful !  What a great exercise !  I won't even check to verify 
that 1:10⁻¹⁹ is an appropriate scale to map the Milky Way onto a 
football field.  I'll just accept it and go from there.
(4.4 light years) x (10⁻¹⁹) = (2.5848 x 10¹³ miles) x (10⁻¹⁹)
                                       =  2.5848 x 10⁻⁶ mile
                                       =    0.164 inch .
(1,391,400 kilometers) x (10⁻¹⁹) = 1.3914 x 10⁻¹⁰ meter
Research Conclusions:
If the Milky Way shrinks to fit on a football field, then
-- Alpha Centauri is  0.164 inch from us.
-- The sun's diameter is about 1.39 times that of a Hydrogen atom.  
Playing with this same fun concept a little more:
-- The Earth is sailing around in its orbit, once a year, 
    about 0.000015 millimeter from the sun.  
-- It takes light almost 27 years to travel 1 inch ! 
wow  !
        
                    
             
        
        
        
range = largest - smallest
     = 22 - (-15)
    = 22 + 15
    = 37