1. What is the coefficient in the term 7x?
- A7
- Bx
- C1
- D7x
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Answer: A) 7
The coefficient is the numerical part of the term, which is 7.
Class 7 Algebraic Expressions — practice questions with answers
Algebra · 5 sample questions from the school syllabus. Try each one, then open the answer and the worked solution.
2. An expression that has exactly one term is called a:
- Amonomial
- Bbinomial
- Ctrinomial
- Dpolynomial
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Answer: A) monomial
An expression with exactly one term is called a monomial, for example 5x or 7.
3. The numerical factor of a term is called its ____. Which of the following correctly fills the blank?
- Acoefficient
- Bvariable
- Cexponent
- Dconstant
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Answer: A) coefficient
The numerical factor multiplied by the variable part of a term is called its coefficient.
4. Which statement is correct?
- A2x + 3x = 5x
- B2x + 3x = 5x²
- C2x + 3x = 6x
- D2x + 3x = 23x
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Answer: A) 2x + 3x = 5x
When adding like terms, only the coefficients are added; the variable stays the same: 2x + 3x = 5x.
5. Find the value of 3a - 2b when a = 5 and b = 4.
- A6
- B7
- C8
- D14
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Answer: B) 7
Substitute a = 5 and b = 4: 3 times 5 - 2 times 4 = 15 - 8 = 7.
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