SOLUTION: Solve these equations using the addition property.
x + y = k
x - y = k
The lines intersect at
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Question 624608: Solve these equations using the addition property.
x + y = k
x - y = k
The lines intersect at
Found 2 solutions by Alan3354, jim_thompson5910:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
x + y = k
x - y = k
---------- Subtract
2y = 0
y = 0
x = k
==========
Intersection (k,0)
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
x + y = k
x - y = k
---------
2x + 0y = 2k
2x = 2k
x = 2k/2
x = k
----------------------------------------------------------------
x+y = k
k+y = k
y = k-k
y = 0
So the solutions are x = k and y = 0
So the lines intersect at (k, 0)
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