Algebra-1

The correct answer is A. Whatever you do to one side, you have to do to the other.

Equations and balanced scales have the common characteristic that whatever operation or manipulation is performed on one side, it must also be done to the other side in order to maintain the balance or equality.

In an equation, both sides are connected by an equal sign (=), indicating that the expressions on the left and right sides have the same value. When solving an equation, various operations such as addition, subtraction, multiplication, or division can be applied to both sides of t...