SOLUTION: What is the linear equation by elimination method of: -x+y=1 x+y=11

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Question 1176727: What is the linear equation by elimination method of:
-x+y=1
x+y=11
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

-x%2By=1....eq.1
x%2By=11.......eq.2
-------------------------------add eq.1 and eq.2
-x%2By%2Bx%2By=1%2B11.......eliminate x
2y=12
y=6
go to
x%2By=11.......eq.2, substitute y
x%2B6=11
x=11-6
x=5

solution: x=5, y=6
or intersection point of given lines is at (5, 6)