SOLUTION: I have to do the following equation as an elimination and I'm a little confused. I did it on a graph and also as a substitution but got a little confused with this method. Here's
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Question 970398: I have to do the following equation as an elimination and I'm a little confused. I did it on a graph and also as a substitution but got a little confused with this method. Here's the equation.
y=x-4
y=-x+8
Can someone please show me the way to do the elimination way with steps so I can see where I went wrong. Thanks in advance!
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Add the equations
y = x-4
y = -x+8
---------
2y = 0x + 4
So if 2y = 4, then y = 2 (divide both sides by 2)
Now use y = 2 to get the value of x
y = x-4
2 = x-4
x-4 = 2
x = 2+4
x = 6
-------------------------------------------------------
So the solutions are x = 6 and y = 2. Stated as an ordered pair, the solution is (6,2)
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