Question 674622: I have a question for algebra is ar-pv and.pv-ar the same.thing 1+1=2 so 2=1+1? Im.confused why is my.answer wrong.because i flip floped.it
Answer by ReadingBoosters(3246)   (Show Source):
You can put this solution on YOUR website! ar - pv is the same as -pv + ar
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In subtracting the larger number is usually first, if not the solution is negative.
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Presuming that ar is positive, ar - pv will yield a positive number, but
pv - ar will yield a negative number because the larger number ar is being taken away from a smaller number pv
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Therefore, ar-pv does not = pv-ar.
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for example, 3-1 = 2.
Well, 1-3 does not equal 2 it equals -2.
However, -1 + 3 = 2, which is the same as 3-1.
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HTH
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Delighted to help.
-Reading Boosters
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