Presidential Candidate Mimics A Sex Act
Society & Culture0 min ago
No best answer has yet been selected by christy053. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.When we learnt it we were made to write them out the long way for ages so; a=2a-3 becomes 3+a=2a-3+3 becomes 3+a-a=2a-a becomes 3=a. After a bit it was obvious that "take 3 away from both sides" gave the same answer as "move the 3 to the other side and change + to -" but the first explained why it worked, the other way is a shortcut.
If you do the same thing to one side as the other and they were equal before, they will still be equal.
Shortcuts are move it to the other side and change
+ to �
- to +
multiply to divide
divide to multiply
You can figure out why the others work, for yourself. We were not allowed to use the shortcuts at first to avoid garbling them through not understanding.