SOLUTION: Im getting stuck on this system of equation by subtitution:
Exercise xy=-12
x-2y+14=0
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Question 729991: Im getting stuck on this system of equation by subtitution:
Exercise xy=-12
x-2y+14=0
Found 2 solutions by Alan3354, josgarithmetic:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
xy=-12
x-2y+14=0 --> x = 2y-14
------
xy = -12
(2y-14)*y = -12
etc
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
System:
xy=-12
x-2y+14=0
No need to be stuck. More than one way to go.
, gives you . Substitute into other equation.
and solve for x from this.
...
Watch for a possible extraneous value for x, although most likely not important since this is not really an application problem.
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