math question?

Question

is
x+a=lyl the same as
lx+al=y?

Answer 1

The best way to show you that it doesn't work is to give you an example when it does not. Therefore, let x = -2, let a = 7, and let y = -5.

That means that in the first equation ...
-2 + 7 = | -5 | ...... 5 = |-5| ...... 5 = 5 .... perfect for equation 1.

Now in the second equation ...
|-2 + 7| = -5 ...... | 5 | = -5 ...... 5 = -5 .... whoops. Doesn't work.

There are countless other examples, but it only takes one exception to make it not true in mathematics.

Answer 2

Not exactly

|y| means the abs. value of y so it's how far away y is from 0 so you have two choices

x+a = -y or x+a = +y

so |6| means 6 units away from 0 so this could be +6 or -6

Answer 3

no it is not the same because absolute value is the positive distance from zero. x could be -4 a could be -6, answer for abs of y = -10

Conversley, y= absolute value of 10. Different you see

Answer 4

The answer is no.

When you are given a problem that involves only letters, replace each letter given by different values to test whether the statement is true or not.

If you do what I say, you'll see that the answer to your question is no.

Guido

Answer 5

I wouldn't think it would be. Since you can't just put the letters wherever you want, or wherever you think it should be.
I'm not a math prof. but from what math knowledge I have I wouldn't think it would be.

Answer 6

i dont think so. in the 2nd equation, y will always be positive. but in the first equation it can also be negative.

Answer 7

Hell no.

In the first equation, y can be negative. In the second, it can't.

Answer 8

no it's not the same

Answer 9

YES

Answer 10

???? i don't know