Answer and explanation

Correct answer: A. x > -6

  1. Step 1: Subtract 3x from both sides: -4 < 2x + 8. Step 2. Subtract 8 from both sides: -12 < 2x. Step 3. Divide by 2: -6 < x, which is x > -6. Answer: x > -6. Why not the others: x < -6 reverses the inequality without a negative divisor; positive 6 fails to track the sign of -12.

Practise more Algebra, Equations, Exponents and Sequences.

Free questions with an explanation for every one, and full timed Nationella prov (Sweden) mock tests.

Solve the inequality: 3x - 4 < 5x… | Nationella prov (Sweden)