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## Homework Statement

Lines l

_{i}: ix+(i+1)y+(i+2)=0; i=1,2 intersect at___ point?

## Homework Equations

The equation is required at first!

## The Attempt at a Solution

I am confused!

How and where should I replace the values of i with 1 or 2?

This is the first step but i am unable to do....