aliensbrain
  • Home
  • Study
  • Quizzes
  • 🎤AI Practicefree
  • Notebooks
  • Community
  • Sign in
  • Simultaneous Equations
  • Solve using elimination method: 3x + 2y = 7 and 2x - 3y =...
Multiple choice

Solve using elimination method: 3x + 2y = 7 and 2x - 3y = - 4

  1. (1, 0)

  2. (0, 2)

  3. (1, 2)

  4. (3, 4)

  5. None of these

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

From first equation, y = (7 - 3x)/2

Substitute in second: 2x - (21 - 9x)/2 = -4 13x = 13 Or x = 1 

Substitute in the first equation to get y = 2.

Keep practicing — related questions

  • The equation x3 -x2 + 4x - 4 = 0 is to be solved using the Newton-Raphson method. If x = 2 is taken as th...
  • The following system of equations $$x_1 + x_2 + 2x_3 = 1$$ $$x_1 + 2x_2 + 3x_3 = 2$$ $$x_1 + 4x_2 + αx_3 = ...
  • Consider a hash table of size seven, with starting index zero, and a hash function (3x + 4) mod 7. Assuming...
  • Consider a hash table of size seven, with starting index zero, and a hash function (3x + 4) mod 7. Assuming...
  • The recursion relative to solve x = e-x using Newton-Raphson method is
  • The system of linear equations 4x + 2y = 7 and 2x + y = 6 has
  • Consider the following C code segment. for (i - 0, i < n; i++) { for (j = 0; j < n; j++) { if (i % 2) { x +...
  • A 4 - bit carry lookahead adder, which adds two 4 - bit numbers, is designed using AND, OR, NOT, NAND, NOR ...
Play the full quiz 🎤 Practise this topic out loud

Practice this topic

  • Linear Equations (153 questions)
Advertisement
© Aliensbrain | all rights reserved
  • About
  • Contact
  • Terms and Condition
  • Privacy Policy