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Left side = right side check type of question.

x - (x + y)/2 = (x - y)/2

What I did was times the x in the left side by 2. I got:
=(2x-x+y)/2
which equals
=(x+y)/2

But the left side is (x-y)/2. What am I doing wrong?
10 years ago

Answers

bobpursley
time x in the left side by 2?
then (2x-x-y)/2= (x-y)/2
10 years ago
annonymous
but the left side has a negative sign in between the x and y, and if you multiply it by -2, it makes the x negative.
10 years ago

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