NCERT Exemplar Solutions
Class 6 - Mathematics - Unit 7: Algebra - Multiple Choice Questions

Question 19

We want the value of x that makes the equation true.

1. Start with the equation:
   \(x - 4 = -2\)
2. Add 4 to both sides (to remove the \(-4\)):
   \(x - 4 + 4 = -2 + 4\)
3. Simplify both sides:
   \(x = 2\)
4. Check your answer by substituting \(x = 2\):
   \(2 - 4 = -2\) ✓ True

So, the solution is \(x = 2\). This matches option B.