SOLUTION: 3x-2y=-9 X-5y=-16 What is the y-coordinate of the point of the intersection of these two lines?

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Question 352109: 3x-2y=-9
X-5y=-16
What is the y-coordinate of the point of the intersection of these two lines?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
3x-2y=-9
X-5y=-16
What is the y-coordinate of the point of the intersection of these two lines?
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Solve each eq. for "x":
x = (2/3)y -3
x = 5y-16
Substitute for "x" and solve for "y"
(2/3)y - 3 = 5y-16
Multiply thru by 3 to get:
2y - 9 = 15y - 48
13y = +39
y = 3
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Cheers,
Stan H.