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x + y = k x - y = k The solution to the system shown is _____. (0, k) (2, 2) (k, 0)
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Asked 4/14/2014 5:06:47 PM
Updated 4/14/2014 8:42:52 PM
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[object Object]User: x + y = k x - y = k The solution to the system shown is _____. (0, k) (2, 2) (k, 0)

Weegy: Let's use the reduction method by adding them up, you'll cancel out the y's, leaving you with x=k Now if x=k, let's replace k by x x-y=k x-y=x x-x=y 0=y Since x = k and 0 = y, [ we'll say that the solution to this system is (K,0) ]
apz13apz|Points 291|

User: 3x - 4y = 7 3x + 2y = -5 When the second equation is subtracted from the first, the resulting equation is _____. -6y = -12 -6y = 12 -2y = -12 2y = 12

Weegy: -6y = 12
yestfl|Points 1444|

User: 5x + y = 6 5x + 3y = -4 The y-coordinate of the solution to the system shown is ___. -5 -1 1

Weegy: that would be -5
yestfl|Points 1444|

User: Given the system of equations, what is the x-coordinate of the solution? y = 3 - 1/2x 3x + 4y = 1 22 -17/2 -11

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Asked 4/14/2014 5:06:47 PM
Updated 4/14/2014 8:42:52 PM
1 Answer/Comment
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y = 3 - 1/2x
3x + 4y = 1
Replace y in the second equation:
3x + 4(3 - 1/2x) = 1
3x + 12 - 2x = 1
x = -11
the x-coordinate of the solution y = 3 - 1/2x, 3x + 4y = 1 is -11.
Added 4/14/2014 8:42:52 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [4/14/2014 8:47:28 PM]
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