Question

The equation of straight line passing through the intersection of the lines x-2y=1
and x+3y=2
and parallel to 3x+4y=0
is [MP PET 2000]
A) 3x+4y+5=0 B) 3x+4y-10=0 C) 3x+4y-5=0 D) 3x+4y+6=0

Answer 1

for pt of interest

x-2y=1
x+3y=2
_________
y=1/5, x=7/5

the line satisfying these values is
3x+4y-5=0