Mathematics ยท Quantitative Aptitude

Linear Equations

153 Questions

Linear equations involve solving for unknown variables in single or multi variable systems. These questions test algebraic manipulation and logical consistency skills. They are a core component of quantitative aptitude and advanced mathematics tests.

Solving simultaneous equationsSingle variable equationsSystem consistency checksIndeterminate equationsMatrix form solutions

Linear Equations Questions

Multiple choice

Solve the linear equation 7x - 4 = 10.

  1. x = 2

  2. x = 3

  3. x = 4

  4. x = 5
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

To solve the equation 7x - 4 = 10, we need to isolate the variable x on one side of the equation. We can do this by adding 4 to both sides of the equation, which gives us 7x = 14. Then, we can divide both sides of the equation by 7, which gives us x = 2.

Multiple choice

Solve the linear equation 8x + 5 = 21.

  1. x = 2

  2. x = 3

  3. x = 4

  4. x = 5
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

To solve the equation 8x + 5 = 21, we need to isolate the variable x on one side of the equation. We can do this by subtracting 5 from both sides of the equation, which gives us 8x = 16. Then, we can divide both sides of the equation by 8, which gives us x = 2.

Multiple choice

Solve the linear equation 9x - 6 = 15.

  1. x = 2

  2. x = 3

  3. x = 4

  4. x = 5
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

To solve the equation 9x - 6 = 15, we need to isolate the variable x on one side of the equation. We can do this by adding 6 to both sides of the equation, which gives us 9x = 21. Then, we can divide both sides of the equation by 9, which gives us x = 3.