Formula deep page
Transposition Rule
If ax + b = c, then ax = c - b (b moves to RHS with -ve sign)
This formula belongs to the chapter "Simple Equations" in Class 7 Mathematics. Use it after identifying the right variables, matching the chapter context, and writing the substitution clearly.
How to use it
- Identify the quantity you need to find.
- Check the related variables and units from the question.
- Substitute values carefully into the formula.
- Simplify step by step and write the final statement.
Worked cue
2x + 7 = 15 → 2x = 15-7 = 8 → x = 4