Answer
**Algebraic Expression Breakdown and Simplification**
**Expression:**
\[ 4x + 3y - 7 \]
**Components:**
- **Terms:**
- **4x**
- **3y**
- **-7**
- **Coefficients:**
- **4** (coefficient of x)
- **3** (coefficient of y)
- **-7** (constant term)
- **Variables:**
- **x**
- **y**
- **Constants:**
- **-7**
**Algebraic Properties Applied:**
1. **Commutative Property:**
- Order of terms can be rearranged without changing the sum.
\[
4x + 3y = 3y + 4x
\]
2. **Associative Property:**
- Grouping of terms doesn't affect the sum.
\[
(4x + 3y) - 7 = 4x + (3y - 7)
\]
3. **Distributive Property:**
- Not applicable here since there's no multiplication over addition.
4. **Combining Like Terms:**
- Not applicable as there are no like terms (different variables).
**Conclusion:**
The expression **4x + 3y - 7** is already in its simplest form.
Solution
Sure! Let’s create a visual representation of an algebraic expression, label each of its parts (constant, coefficient, term, variable), and explain how algebraic properties can be applied to simplify it.
We'll use the algebraic expression:
**\[ 4x + 3y - 7 \]**
Below is a text-based artwork illustrating each component:
```
+-----------------+-----------------+-----------------+
| 4x | 3y | -7 |
+-----------------+-----------------+-----------------+
| Term: 4x | Term: 3y | Term: -7 |
| Coefficient:4 | Coefficient:3 | Constant: -7 |
| Variable: x | Variable: y | |
+-----------------+-----------------+-----------------+
```
### **Component Breakdown**
1. **Terms:**
- **4x**, **3y**, and **-7** are all terms in the expression. A term can be a constant, a variable, or a combination of both.
2. **Coefficients:**
- **4** is the coefficient of **x**.
- **3** is the coefficient of **y**.
- **-7** is a constant term (it doesn’t have a variable, so it's its own coefficient).
3. **Variables:**
- **x** and **y** are variables representing unknown values.
4. **Constants:**
- **-7** is a constant because it’s a fixed number without a variable.
### **Applying Algebraic Properties to Simplify**
Even though the expression **4x + 3y - 7** is already simplified, let's explore how algebraic properties help in simplifying expressions in general.
1. **Commutative Property:**
- **Addition:** The order of adding terms doesn't matter.
\[
4x + 3y = 3y + 4x
\]
- **Useful For:** Rearranging terms to group like terms together.
2. **Associative Property:**
- **Addition:** How terms are grouped doesn't affect the sum.
\[
(4x + 3y) - 7 = 4x + (3y - 7)
\]
- **Useful For:** Simplifying expressions by grouping terms in a convenient way.
3. **Distributive Property:**
- Distributes multiplication over addition or subtraction.
\[
a(b + c) = ab + ac
\]
- **Example:** Simplifying \( 2(x + 3) \)
\[
2(x + 3) = 2x + 6
\]
- **Useful For:** Expanding expressions or factoring.
4. **Combining Like Terms:**
- **Like Terms:** Terms that have the same variable raised to the same power.
- **Example:** Simplify \( 2x + 5x \)
\[
2x + 5x = 7x
\]
- **In Our Expression:**
- **4x** and **3y** are not like terms (different variables).
- **-7** is a constant and has no like term in this expression.
- Therefore, **4x + 3y - 7** is already simplified.
### **Visualization Summary**
```
Expression: 4x + 3y - 7
+-----------------+-----------------+-----------------+
| 4x | 3y | -7 |
+-----------------+-----------------+-----------------+
|Term: 4x |Term: 3y |Term: -7 |
|Coefficient: 4x |Coefficient: 3y |Constant: -7 |
|Variable: x |Variable: y | |
+-----------------+-----------------+-----------------+
Algebraic Properties Applied:
1. Commutative Property (if rearranging needed)
2. Associative Property (for grouping)
3. Distributive Property (if expanding or factoring)
4. Combining Like Terms (not applicable here)
```
### **Conclusion**
By breaking down the expression **4x + 3y - 7** into its components—terms, coefficients, variables, and constants—we can clearly see how each part functions within the expression. Understanding and labeling these parts is crucial when applying algebraic properties to simplify more complex expressions. In this case, since there are no like terms to combine and no need for distribution, the expression is already in its simplest form.
Reviewed and approved by the UpStudy tutoring team
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