Understand equations and solutions
An equation is a mathematical statement that two expressions are equal.
A solution is a value that makes the equation true.
For :
So is the solution!
Think of an equation like a balance scale. Both sides must stay equal.
Key Rule: Whatever you do to one side, you must do to the other side to keep it balanced.
When solving equations, we want to isolate the variable (get it alone on one side).
In the next lessons, we'll learn techniques to isolate the variable step by step.