Equations of straight lines

1. Find the equation of straight lines satisfying the following conditions:
The product of x-intercept and the y-intercept is 20, and parallel to the line
5x+2y-6=0

2. Find the equation of line(s) such that perpendicular to L1: x-y=0, and the
area of the triangle enclosed by the line and the axes is 7/1/5 .
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