Question

can ypu give steps also for this ortho centre of 7x+y-10=0,x-2y+5=0,x+y+2=0

Answer 1

7x+y=10 - eq. 1
x-2y= -5 - eq.2
x+y = -2 - eq. 3


eq. 2 - eq. 3
x-2y= -5
x+y= -2

-3y=-3
3y=3
y=1 put in eq. 3