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The two lines $y = 4x - 19$ and $2x+y = 95$ intersect. What is the value of $x$ at the point of intersection?

 Dec 5, 2017

Best Answer 

 #1
avatar+7350 
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y  =  4x - 19

2x + y  =  95

 

Substitute  4x - 19  for  y  into the second equation.

 

2x + (4x - 19)  =  95

 

2x + 4x - 19  =  95

 

2x + 4x  =  95 + 19

 

6x  =  114

 

x  =  114/6   =   19

 Dec 5, 2017
 #1
avatar+7350 
+1
Best Answer

y  =  4x - 19

2x + y  =  95

 

Substitute  4x - 19  for  y  into the second equation.

 

2x + (4x - 19)  =  95

 

2x + 4x - 19  =  95

 

2x + 4x  =  95 + 19

 

6x  =  114

 

x  =  114/6   =   19

hectictar Dec 5, 2017

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