- A
- B
- C
- D
Step-by-Step Solution
An expression has no equals sign; an equation does. Only 7k − 5 is free of '='. Note that 6 = 2m is still an equation even though the plain number is written first — the '=' is what decides.
Answer: D)
Rekha writes four lines in her notebook. Which one is an expression and NOT an equation?
Class 6AlgebraAlgebra
Key idea: Evaluating an expression
To evaluate an expression, **substitute** a value for the variable and compute. If , then becomes . The same expression with gives . Practise substituting — it is the bridge between an algebraic expression and a real number.
Master this chapter in 30 minutes a day.
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All Algebra practice questions
More Class 6 Algebra practice
The number of flatbreads Kamla can make is given by the rule 6k − 4, where k is the…A ribbon of length p centimetres is cut into two equal parts. Which expression gives the…Which statement about the letter x in the expression x + 4 is TRUE?'When 8 is added to a number m, the result is 21.' Which equation says this?Find the value of y that makes 4y = 20 true.