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Let's work through the problems in the image step by step:

### Problem 1:
The equation given is:

\[ 10x + 3y + Bx - y \]

The instructions ask to determine:
a. Variables  
b. Coefficients  
c. Constants  
d. Factors  
e. Terms (Suku-Suku)

#### a. Variables:
The variables are the letters that represent unknown quantities. In the given equation, the variables are:
- \( x \)
- \( y \)
- \( B \) (assuming B is a constant coefficient)

#### b. Coefficients:
The coefficients are the numbers multiplying the variables. In this case:
- For \( 10x \), the coefficient is 10.
- For \( 3y \), the coefficient is 3.
- For \( Bx \), the coefficient is \( B \).
- For \( -y \), the coefficient is -1 (since no number is explicitly written).

#### c. Constants:
Constants are numbers or symbols without variables. In this expression, no standalone constant (a number without any variable) is present, unless we assume that \( B \) is a known number.

#### d. Factors:
Factors are quantities that multiply to form terms. For example:
- In \( 10x \), the factors are 10 and \( x \).
- In \( 3y \), the factors are 3 and \( y \).
- In \( Bx \), the factors are \( B \) and \( x \).
- In \( -y \), the factors are -1 and \( y \).

#### e. Terms (Suku-Suku):
The terms are separated by plus or minus signs. The given expression has 4 terms:
- \( 10x \)
- \( 3y \)
- \( Bx \)
- \( -y \)

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### Problem 2:
The second problem asks to determine which of the following expressions have **like terms** ("Suku-Suku Sejenis"). Like terms have the same variables raised to the same powers.

Let's check the given options:

- **a. \( 4p - 4p \)**  
  These are like terms because both terms involve \( p \), and they are raised to the same power (1).
  
- **b. \( 3x^2 + 2y^2 \)**  
  These are not like terms because one term involves \( x^2 \) and the other involves \( y^2 \), different variables.

- **c. \( 2xy - xy \)**  
  These are like terms because both terms involve \( xy \), the same combination of variables.

- **d. \( 8p - 9 \)**  
  These are not like terms because one term involves \( p \) and the other is a constant.

- **e. \( 14p^2 - 9p \)**  
  These are not like terms because the first term involves \( p^2 \) and the second term involves \( p \).

- **f. \( 7p - 8p \)**  
  These are like terms because both terms involve \( p \).

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Do you want more details or have any other questions? Here are some related questions:

1. How can you identify variables and coefficients quickly in an expression?
2. What are some examples of constant terms?
3. What’s the difference between factors and terms in an algebraic expression?
4. How do like terms help in simplifying expressions?
5. Why are coefficients important in solving algebraic equations?

**Tip:** When simplifying expressions, always combine like terms first to make the equation easier to solve!

Learn how to identify variables, coefficients, and like terms in the algebraic expression 10x + 3y + Bx - y. Understand how to break down terms and simplify expressions. Suitable for students in Grades 7-9.

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