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The point of intersection of the graphs ...

The point of intersection of the graphs of the equations 3x - 5y = 19 and 3y- 7x + 1 =0 is `P(alpha,beta)` . What is the value of `(3 alpha - beta )` ?

A

1

B

`-2`

C

`-1`

D

0

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The graphs of the equations 3x + y- 5 = 0 and 2x - y - 5 = 0 intersect at the point P(alpha,beta) . What is the value of (3 alpha+ beta) ?

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