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OpenStudy (anonymous):
-5x+y=-5 5x-y=5 Does this system have a solution?
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OpenStudy (nikato):
no?
OpenStudy (anonymous):
No, both variables cancel out
OpenStudy (anonymous):
what about this: 3x−y=3ˏ −3x+y=3
OpenStudy (anonymous):
Isolate y for both instances. We get 5x-5=y. This means the two lines lie on top of each other. That should mean that x is all reals.
OpenStudy (anonymous):
Same thing
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OpenStudy (anonymous):
Once again you must isolate for y. You get 3x-3=y and 3x+3. Since the slope is the same the two lines are parallel and cannot intersect at any point. No solution.
OpenStudy (nikato):
oh, nvm, the first one is infinitely many
OpenStudy (anonymous):
Yeah i just realized that
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