ferris'
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   4x-6=x+9             subtract    1x
   -x    -x                 from both sides
   3x-6=9                     add  6 to each
      +6 +6                        side
      3x=15
      3    3          divide by 3 on each side
       x=5		       y=mx+b          subtract   b from 
     -b         -b               each  side
   y-b=mx           divide by m on 
   m  m                  each side
   y-b=x
     m
line with slope=3 through (2,9)

(y-9)=3(x-2)
 
 
 

 first you must find the slope of three find the x-point and the x-piont then plug them in to find the correct answer / equation

 

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