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Find the equation of the line through the intersection of lines `3x+"\ "4y="\ "7` and `x y+"\ "2"\ "="\ "0` and whose slope is 5.

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The correct Answer is:
`35x−7y+18=0`
Equation of line is `3x+4y=7` and `x-y=-2`.
`3x+4y=7 and 4x-4y=-8`
`7x=−1`
`x=−1/7`
`implies -1/7-y=−2`
`y=2 - 1/7`
`y=13/7`
...
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