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Jmarie08
14.07.2019 •
Mathematics
Are there any values of x and y for which x + y is equal to x - y
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Ответ:
You can choose any value for
, while you must choose
.
Intuitively, this makes sense since
means that you want to start from number
, and you want to obtain the same result by moving left or right by
units. This can't happen, unless you don't move at all, i.e.
.
If you want to be more formal, you have
while
was canceled, so it can assume any value.
Ответ:
-4x = -3
3 = 4x
Step-by-step explanation:
just did it n got it right