If, for example, you had x on one side and x on the other, then subtracting x from both sides "disappears" x. If no other power of x shows up on either side, then your equation either has no solution or is always true.
Answer:
Step-by-step explanation:
<em>First step is that you need to have the same denominators so 1/3=2/6</em>
<em>If she spent 1/6 on snacks and 2/6 on a book which means she spent 3/6</em>
<em>so the fraction of what she saved is 3/6 or 1/2</em>
Hey!
Let's write it,

Add

to both sides,


Subtract

from both sides.


Since we don't want a negative variable, we have to divide both sides by

.

Our answer would be,

Thanks!
-TetraFish
A= -5 is the correct answer