Find the value of $B - A$ if the graph of $Ax + By = 3$ passes through the point $(-7,2),$ and is parallel to the graph of $x + 3y = -5.$

x + 3y = -5.      is tha same as    y = -1/3 x - 5/3     slope, m = -1/3

parallel line is of the form   y = -1/3 x + b

  sub in the given point      2 = -1/3 (-7)  + b     shows b = -1/3

    so line eq becomes       y = - 1/3 x -1/3

      re-arranged                  y + 1/3 x = -1/3        multiply by 3

                                               x + 3y = - 1      now you can calc  B-A

Step-by-step explanation:

I hope this helps u

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step-by-step explanation: