- Thread starter frenchyff
- Start date

Yes, -x is the same as -1* x or you can also write it as (-1)x-x = 2

I know that x = -2 I just want to know why i am able to Divide both sides by -1.

is -x the same as (-1 times x) or is there a case where this is not true.

Or you can use multiplication-x = 2

I know that x = -2 I just want to know why i am able to Divide both sides by -1.

is -x the same as (-1 times x) or is there a case where this is not true.

\(\displaystyle -x = 2 \implies (- 1 ) * (- x) = (-1) * 2 \implies x = - 2.\)

In general. \(\displaystyle - ax = u \implies (-1) * (-ax) = (-1) * u \implies ax = -u.\)