SOLUTION: `Find B - A if the graph of Ax + By = 7 passes through (2,1) and is parallel to the graph of 2x - 7y = 3

SOLUTION: `Find B - A if the graph of Ax + By = 7 passes through (2,1) and is parallel to the graph of 2x - 7y = 3

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Question 1015977: `Find B - A if the graph of Ax + By = 7 passes through (2,1) and is parallel to the graph of 2x - 7y = 3
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Parallel means it has the same slope,

So then,

and

You also can use the point,

Multiply both sides by 2,

Substitute from the first equation,

Then,

So then,

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