You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an alternative browser.
You should upgrade or use an alternative browser.
-x = 2
- Thread starter frenchyff
- Start date
-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.
Yes, -x is the same as -1* x or you can also write it as (-1)x
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. \(\displaystyle - ax = u \implies (-1) * (-ax) = (-1) * u \implies ax = -u.\)