Question

prove that the three lines 5x+3y-7=0,3x-4y=10,x+2y=0 meet in a point​

Answer 1

Answer:

x+2y=0

x=-2y

put the value of x = -2y

3x-4y=10

3(-2y) -4y=10

-6y-4y=10

-10y=10

y=10/-10

y=-1

again

5x+3y-7=0

5x+3(-1) -7=0

5x-3-7=0

5x-10=0

x=10/5

x=2