Linear Equations in One Variable
22 solved questions from Class 8 Mathematics, each with the full working. Tap any question to see the step-by-step solution.
- 1 Find the zeroes of the quadratic polynomial x² - 5x + 6. medium MCQ Zeroes of Polynomial
- 2 What is the degree of a non-zero constant polynomial? medium MCQ Degree of Polynomial
- 3 Solve for x: 2x + 5 = 15. medium MCQ Linear Equations
- 4 Find the discriminant (D) of x² - 4x + 4 = 0. medium MCQ Quadratic Discriminant
- 5 If the roots of ax² + bx + c = 0 are real and equal, what is D? medium MCQ Nature of Roots
- 6 Expand (a + b)². medium MCQ Algebraic Identities
- 7 Factorise x² - 9. medium MCQ Difference of Two Squares
- 8 Solve pair of equations: x + y = 10 and x - y = 4. medium MCQ Pair of Linear Equations
- 9 What is the degree of a quadratic polynomial? medium MCQ Degree of Polynomial
- 10 If x = 2 is a root of x² - kx + 10 = 0, find k. medium MCQ Roots of Equation
- 11 What is the domain, range, or fundamental theorem introduced in 'Linear Equations in One Variable' (Class 8 Mathematics)? medium MCQ Functions & Theorems
- 12 What is the derivative or integral formula associated with 'Linear Equations in One Variable'? medium MCQ Calculus & Formulae
- 13 How do you find the solution set or optimum value in 'Linear Equations in One Variable'? medium MCQ Problem Solving & Optimization
- 14 Solve for x in the equation 3x-5=16. easy 1 mark Solving a single linear equation
- 15 The total monthly salary of two employees, A and B, is Rs. 70,000, and the difference between their salaries is Rs. 8,000. Find the individual salaries of A and B. hard 3 marks Solving simultaneous linear equations
- 16 Solve 5/x+2=7 for x. medium MCQ 2 marks Linear equation with a variable in the denominator
- 17 Solve the linear equation 4(2x-1)=3x+5. medium 2 marks Linear equation with distribution
- 18 Solve the equation 7x/3=14. easy MCQ 1 mark Linear equation with a single fraction
- 19 Find the value of x that satisfies the equation 5x - 9 = 16. easy 1 mark Solving linear equations
- 20 Solve the equation (3x + 4)/5 = (2x - 1)/3. medium 2 marks Solving fractional linear equations
- 21 Two traders, A and B, earned a combined total of Rs. 1,80,000 in a month. Trader A earned Rs. 20,000 more than trader B. Find the individual earnings of A and B. hard 4 marks Word problem with linear equations
- 22 Find the value of x that satisfies the equation (4x + 7)/2 - (3x - 5)/3 = 5. hard MCQ 3 marks Solving fractional linear equations with subtraction