23 lines
619 B
Markdown
23 lines
619 B
Markdown
---
|
|
tags: [algebra]
|
|
---
|
|
|
|
# Algebra key terms
|
|
|
|
- **Variable**
|
|
- A symbol that stands for a value which may vary
|
|
- **Equation**
|
|
- A mathematical statement that equates two mathematical expressions (states
|
|
that they are the same/ establishes an identity relation)
|
|
- **Solution** ^678811
|
|
- A numerical value that **satisfies** an equation. When the variable in the
|
|
equation is replaced by the solution, a true statement results
|
|
|
|
### Example
|
|
|
|
$$ 4 = y - 11 $$
|
|
|
|
The example above is an **equation**. $y$ is the variable. This can be replaced
|
|
by $15$ which is the **solution** to the equation:
|
|
|
|
$$ 4 = 15 -11 $$
|