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In a rectangular coordinate system, the line 3y=x intersects the line 2x+5y=11  at point A. What is the sum of the coordinates of point A?

 Mar 29, 2020
 #1
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Substitute and solve for x and y:

2(3y) + 5y = 11

6y + 5y = 11

y = 1

 

Plug back in:

2x + 5(1) = 11

2x + 5 = 11

2s = 6

x = 3

___________________________________________________

Coordinate of Point A: (3, 1)

 

Answer = 3 + 1 = ???

 Mar 29, 2020

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