# What do you do when your variable cancels out?

##### 1 Answer
Feb 21, 2015

Suppose we're solving in $\setminus m a t h \boldsymbol{R}$

$0 x = 1 \setminus R i g h t a r r o w S = \setminus \emptyset$

$0 x = 0 \setminus R i g h t a r r o w S = \setminus m a t h \boldsymbol{R}$