Chapter 13: Algebra – Advanced — Online MCQ Test
MATHS · Samacheer Kalvi 7th · Tamil Nadu State Board
Practice Chapter 13: Algebra – Advanced with a free chapter-wise online MCQ test.
This chapter covers: Simplification equations and problem solving simplification equations variables.
AI-generated questions from basic to board-exam level, with instant results and explanations.
Chapter 13: Algebra – Advanced — Important Questions & Answers
Which of the following is a variable?
- A. 5
- B. x
- C. 12
- D. 7 + 3
Answer: B. x
A variable is a symbol used to represent an unknown value. Here, x is a variable.
A variable is a symbol used to represent an unknown value. Here, x is a variable.
Which expression means "5 more than a number n"?
- A. 5n
- B. n - 5
- C. n + 5
- D. 5 - n
Answer: C. n + 5
"5 more than n" means add 5 to n, so the expression is n + 5.
"5 more than n" means add 5 to n, so the expression is n + 5.
Simplify: 4x + 3x
- A. 7x
- B. 12x
- C. x7
- D. 4x3
Answer: A. 7x
Like terms are added by adding their coefficients. So 4x + 3x = 7x.
Like terms are added by adding their coefficients. So 4x + 3x = 7x.
Simplify: 3p + 4 - 2p + 7
- A. p + 11
- B. 5p + 11
- C. p + 3
- D. p + 7
Answer: A. p + 11
Combine like terms: 3p - 2p = p and 4 + 7 = 11. So the result is p + 11.
Combine like terms: 3p - 2p = p and 4 + 7 = 11. So the result is p + 11.
If 2(x - 3) + 5 = 3x - 1, what is the value of x?
- A. 2
- B. 3
- C. 4
- D. 5
Answer: C. 4
Expand the left side: 2x - 6 + 5 = 2x - 1. So 2x - 1 = 3x - 1, giving x = 0? Wait, check carefully: 2x - 1 = 3x - 1, subtract 2x from both sides to get -1 = x - 1, hence x = 0. But 0 is not an option, so the correct equation is not matched by the options.
Expand the left side: 2x - 6 + 5 = 2x - 1. So 2x - 1 = 3x - 1, giving x = 0? Wait, check carefully: 2x - 1 = 3x - 1, subtract 2x from both sides to get -1 = x - 1, hence x = 0. But 0 is not an option, so the correct equation is not matched by the options.