aliensbrain
  • Home
  • Study
  • Quizzes
  • 🎤AI Practicefree
  • Notebooks
  • Community
  • Sign in
  • World Geography and General Knowledge Quiz
  • If 2x-y=4 then 6x-3y=?
Multiple choice general knowledge

If 2x-y=4 then 6x-3y=?

  1. 15

  2. 12

  3. 18

  4. 10

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

Multiply the first equation by 3: 3(2x-y) = 3(4) gives 6x-3y = 12. This is a direct application of the distributive property and multiplication property of equality.

Keep practicing — related questions

  • If 9x-3y=12 and 3x-5y=7 then 6x-2y = ?
  • What is the coefficient of x2y2 in the algebraic expression – x2y2 + 7x2y2 + 7x2 – 7y2 + 6x2y2?
  • Which of the following are legal lines of code? 1. int w = (int)888.8; 2. byte x = (byte)1000L; 3. long y =...
  • Directions: Choose the correct word for blank (4). Why are our MPs so unconcerned about the functioning of ...
  • When x = 0, y = -1, then the value of expression 2x + 2y is
  • If one of the roots of the equation $2x^2 - 6x + k = 0$ is $(\alpha + 5i ) / 2$ , then the values of $\alph...
  • What will be the output of the program? String x = "xyz"; x.toUpperCase(); /* Line 2 */ String y = x.replac...
  • Which of the following molecules/ions have tetrahedral geometry? 1. IF4+ 2. NH4+ 3. ICl4- 4. XeO4
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