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OpenStudy (anonymous):
How do I know this is true? 2x -4 = 2x - 4
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OpenStudy (anonymous):
its true because its the commutative property i believe
OpenStudy (anonymous):
You can use login to see that it's the same but here is the answer: 2x−4=2x−4 So 2x−2x= -4 + 4 0=0 So it's true.
OpenStudy (anonymous):
thanks for the medal
OpenStudy (anonymous):
I meant logic instead of login. Sorry.
OpenStudy (anonymous):
Thanks guys :)
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OpenStudy (anonymous):
ur welcome
OpenStudy (anonymous):
no problem.
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