aliensbrain
  • Home
  • Study
  • Quizzes
  • 🎤AI Practicefree
  • Notebooks
  • Community
  • Sign in
  • Maths Online Test Class 7
  • What should be the value of 'a' if 2y - 3y - a = 3 for y = 1
Multiple choice

What should be the value of 'a' if 2y - 3y - a = 3 for y = 1

  1. -1

  2. 1

  3. 4

  4. -4

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Substitute y = 1 into the equation: 2(1) - 3(1) - a = 3. This simplifies to 2 - 3 - a = 3, which is -1 - a = 3. Solving for a gives -a = 4, so a = -4.

Keep practicing — related questions

  • A, B and C were partners sharing profits in the ratio 5 : 4 : 1. 'A' retired and new ratio was decided as 3...
  • Which of the following are legal lines of code? 1. int w = (int)888.8; 2. byte x = (byte)1000L; 3. long y =...
  • When x = 0, y = -1, then the value of expression 2x + 2y is
  • The book value of furniture at the beginning of an year on 1st April was Rs. 1,50,000. During the year, fur...
  • The book value of investment is Rs. 1, 20,000 and investment fluctuation fund is appearing at Rs. 15,000. T...
  • If 1 + 1 = 0 2 + 2 = 2 3 + 3 = 24, then 4 + 4 = ?
  • Directions: Below are given four sentences, (1), (2), (3) and (4). To make a stanza, arrange them in the co...
  • Which of the following complexes are diamagnetic? (1) [Co(NH3)6]3+ (2) [W(CO)6] (3) [Cr(NH3)6]3+ (4) [Fe(CN...
Play the full quiz 🎤 Practise this topic out loud

Practice this topic

  • Algebraic Expressions (157 questions)
Advertisement
© Aliensbrain | all rights reserved
  • About
  • Contact
  • Terms and Condition
  • Privacy Policy