is -x negative or postive? how do u know? give example

It's negative, because it has a minus sign before it.

can't it be -(-6) also?

-x is the opposite of x

so if x is positive, -x is clearly negative but
if x is negative, then -x is positive.

To determine whether -x is negative or positive, we need to understand the properties of the negative sign and the operation of multiplication.

The negative sign, represented by the "-" symbol, is used to indicate the opposite or opposite direction. When it is placed in front of a number, it indicates that the number should be negated or have its sign reversed.

Multiplication is an operation that combines two (or more) numbers to obtain their product. When we multiply a positive number by a positive number, or a negative number by a negative number, we get a positive result. On the other hand, multiplying a positive number by a negative number, or vice versa, gives a negative result.

Now, let's apply this knowledge to determine if -x is negative or positive.

If x is a positive number, then -x would be the opposite of x. For example, if x = 5, then -x would be -5, which is a negative number.

If x is a negative number, then -x would again be the opposite of x. For instance, if x = -3, then -x would be -(-3), which simplifies to +3. In this case, -x is positive.

In summary, if x is a positive number, -x is negative. If x is a negative number, -x is positive.