This is graph of simultaneous equations 
.
The solution of this simultaneous equations?
.The solution of this simultaneous equations?
General beginner looking at this problem produces very scared.
But the two veterans to find the answer simply.
The coordinates of two knife encounter is the solution of two simultaneous equations.
(4, 3)! Again, careful, Write the first x-coordinate.
(4, 3)! Again, careful, Write the first x-coordinate.
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