Question

Find the value of p,if the following lines are concurrent.
3x+4y=5,2x+3y=4,px+4y=6

Answer 1

3x+4y−5=0=>x=35−4y2x+3y−4=0=>2(35−4y)+3y−4=0=>10−8y+9y−12=0=>y=2x=35−4y=35−4(2)=−1px+4y−6=0=>p(−1)+4(2)−6=0=>−p+8−6=0=>p=2

well I am in eight this was easy